23rd International Workshop on Next Generation Nucleon Decay and Neutrino Detectors (NNN24)

28 Oct 2024, 08:00 → 1 Nov 2024, 17:25 America/Sao_Paulo

Auditório Ministro João Alberto Lins e Barros (CBPF, Rio de Janeiro)

David Martinez (South Dakote School of Mines and Technology), Helio da Motta (Centro Brasileiro de Pesquisas Fisicas)

The 23rd International Workshop on Next Generation Nucleon Decay and Neutrino Detectors (NNN24) will be held in Rio de Janeiro, Brazil. The Workshop venue will be the Brazilian Center for Research in Physics (CBPF). 

NNN24 is jointly organized by CBPF and the South Dakota School of Mines and Technology (SDSMT)

                    

Over the last 25 years, the NNN series of workshops has been providing the international community a forum for in-depth discussions on future large scale detectors for research on nucleon decay and neutrino physics since its inaugural workshop in 1999 at Stony Brook (NY). The main physics topics of the workshop include: Searches for proton decay, CP violation in the lepton sector, determination of the neutrino mass hierarchy, and observation of neutrinos from core-collapse supernovae.  NNN 24 will have invited  talks covering a broad overview of the topics of the Workshop and selected contributed talks on more specific subjects. A poster session addressing on the topic of the workshop is planned (the format of the poster must be A0, oriented vertically). Graduate students and postdocs are strongly encouraged to attend the workshop.

September 15 is the deadline for submission of abstracts for posters and contributed talks .

 

 

 

 

NNN 24 was made possible by the support of Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Indus Mecânica Fina e Opto-mecânica, FCA Brasil Solucões em Vácuo, Metalcard Indústria e Serviço de Usinagem, Grupo PWM, Vini Laser Gravação e Corte a Laser, Pradolux Indústria e Comércio from Brazil,  Glass to Power from Italy, MDPI from Switzerland, and Centro Latino-Americano de Física (CLAF).

                     

                                                   

                                

 

             

POSTER NNN24 A3.pdf

POSTER NNN24 BANNER.pdf

Monday 28 October

08:30 → 09:00 Registration

09:00 → 09:30 Opening

Opening session

Conveners: David Martinez, Helio da Motta (Centro Brasileiro de Pesquisas Fisicas)

09:00 Welcome

Speakers: Helio da Motta (Centro Brasileiro de Pesquisas Fisicas), David Martinez

opening_presentation1.pdf

09:05 CBPF

Speaker: Marcio Portes

Apresentacao_CBPF_NNN.pdf

09:15 NNN

Speaker: Chang Kee Jung (SUNY)

NNN24-Rio-chang.pdf

09:25 General information

Speaker: Helio da Motta (Centro Brasileiro de Pesquisas Fisicas)

09:30 → 10:30 Invited talks: invited talk

Convener: David Martinez

09:30 T2K latest results and future prospects

T2K is a long-baseline neutrino oscillation experiment in Japan, measuring the primary muon neutrino beam produced at J-PARC in Tokai. A suite of near detectors are used to constrain the cross section and flux model, and the Super-Kamiokande detector is used as a far detector to measure neutrinos after oscillation. This presentation will show the latest T2K oscillation analysis results with beam neutrino data from T2K’s first 11 run periods, including the data collected with first Gd-loading at the far detector. In addition, results from the joint fit of the T2K beam data and the atmospheric neutrinos from Super-Kamiokande will be presented. Moreover, the upgrades recently completed on the beamline and the off-axis near detector complex (ND280) will be showed. Finally, the prospects on the T2K analyses in the near future will also be discussed in the talk.

Speaker: Jianrun Hu (Kyoto University)

T2K latest results and future prospects (NNN2024).pdf

10:00 New Results from the NOvA experiment & the joint-fit with T2K

NOvA is a long-baseline neutrino oscillation experiment consisting of two functionally identical tracking calorimeter detectors placed in a beam of muon (anti-)neutrinos. The near detector is located at Fermilab, sampling neutrinos from the 1 MW-capable NuMI beam. The neutrinos then travel 810 km to Ash River, Minnesota, where the much larger far detector measures them again after they have oscillated.

These measurements of muon-neutrino disappearance and electron-neutrino appearance, and their antineutrino counterparts at the far detector, are used to measure neutrino mass differences and the parameters of the PMNS mixing matrix and provide a constraint on neutrino mass ordering and charge-parity violating phase $\delta_{CP}$.

In this talk, I will briefly summarize the recently released joint-fit analysis from NOvA and T2K. I will then detail the latest 3-flavor oscillation analysis results from 10 years of data taking on NOvA These results include a nearly doubled neutrino-beam mode dataset, a new electron neutrino sample, and improvements to analysis techniques and systematics.

Speaker: Zoya Vallari

20241028_NNN_NOvA_ZV.pdf

10:30 → 11:00 Coffee break

11:00 → 12:00 Invited talks: invited talk

Convener: David Martinez

11:00 Deep Underground Neutrino Experiment: DUNE, Current Status and Perspectives

The Deep Underground Neutrino Experiment (DUNE) provides a rich science program, focusing on neutrino oscillations, with astrophysical and beyond the standard model physics on the scope. This presentation reports on the current status of DUNE's development, including the latest prototype activities, and detector R&D

Speaker: Gustavo Valdiviesso (Unifal-MG (Universidade Federal de Alfenas))

Status of DUNE - NNN.pdf

11:30 Status of the Hyper-Kamiokande Experiment

Hyper-Kamiokande (HK) is a next generation neutrino experiment. It has wide range of physics targets from neutrino physics, nucleon decay search to astrophysics. With new 260 kton Water Cherenkov detector in Kamioka, upgraded neutrino beam line and near detectors in J-PARC, HK will break through the current limit of physics sensitivity in various fields. The construction started in 2020 and excavation of the cavern will complete in FY2024. The preparation of the detector components such as PMT and Electronics is also in progress. This talk presents the latest status of the construction and the prospects of HK experiment. HK plans to start its operation in 2027.

Speaker: Yousuke Kataoka (ICRR, The University of Tokyo)

kataoka_hk241026_nnn24.summary.pdf

kataoka_hk241026_nnn24.ver2.pdf

12:00 → 12:20 Discussion

12:20 → 14:20 Lunch

14:20 → 15:25 Invited talks: invited talk

Convener: Ricardo Gomes (Universidade Federal de Goias)

14:20 SuperK latest results and future prospects

Super-Kamiokande (SK), a 50-kton water Cherenkov detector, observes neutrino interactions ranging from a few MeV to TeV and searches for nucleon decay signals. From 2020, gadolinium (Gd) sulfate is dissolved in the detector water to enhance neutron detection capability. In this talk, we present the latest results of SK analyses before and after the Gd loading, including neutrino oscillation analyses and neutron observation in atmospheric neutrino events, searches for diffuse supernova neutrino background (DSNB), reactor neutrino observation, and searches for nucleon decays.

Speaker: Shintaro Miki (ICRR, University of Tokyo)

miki_NNN_SuperK_241028_v2.pdf

14:50 Underwater and under-ice km-scale detectors: similarities and differences

Neutrino astronomy has acquired an increasingly important role in investigating violent phenomena in remote regions of the universe, completing the multi-messenger scenario together with electromagnetic radiation, cosmic rays and gravitational waves.
The flux of astrophysical neutrinos, in the energy region of greatest interest, i.e. above 100 TeV, is rather small and it drives the construction of cubic-kilometer scale detectors which must operate for decades. This is the target for the second generation of underwater and under-ice Cherenkov neutrino telescopes, namely IceCube, KM3NeT and GVD-Baikal. IceCube has already reached an instrumented volume of about 1 km$^3$ , while KM3NeT and GVD-Baikal will reach the target in the coming years.
This contribution will review the scope and the main characteristics of such detectors, discussing their similarities and differences in terms of construction and performance. A brief review of the main recent scientific findings will also be given.
Finally, the role of these experiments in the context of the Global Neutrino Network will be discussed, along with new projects that are still in the design phase or are testing the first detector prototypes.

Speaker: Tommaso Chiarusi (INFN - Sezione di Bologna)

NNN2024-KM3-NeutrinoTelescopes_chiarusi_v04.pdf

15:25 → 15:55 Coffee break

15:55 → 16:25 Invited talks: invited talk

Convener: Ricardo Gomes (Universidade Federal de Goias)

15:55 JUNO' status and future prospects

Jiangmen Underground Neutrino Observatory (JUNO), a next generation underground
reactor antineutrino experiment, is proposed to determine the
neutrino mass hierarchy and precisely measure neutrino oscillation parameters using a
massive liquid scintillator detector underground. The experimental
hall, spanning more than 50 meters, is under a granite mountain of over 700 m overburden.
The central antineutrino detector, built with 35.4-meter
diameter acrylic sphere, contains 20 kilotons of liquid scintillator and ~18,000 20 inch PMTs
(and ~25,000 3 inch PMTs). The antineutrino detector is placed
in a water pool shielding system which also functions as an active water Cherenkov veto
detector. On the top of water pool is a Top Tracker system which
further improves the muon track reconstruction. The talk will present the project construction status and its future prospects.

Speaker: Prof. Xiaonan Li (Institute of High Energy Physics, Chinese Academy of Sciences, Beijing)

JUNO-NNN24-Xiaonan-202410.pdf

JUNO-Summary-NNN24-Xiaonan-202410.pptx

16:25 → 17:05 Contributed talk

Convener: Ricardo Gomes (Universidade Federal de Goias)

16:25 Latest results from the Neutrinos-Angra Project

The Neutrinos Angra Experiment, a ton-scale gadolinium-loaded water Cherenkov detector, is located approximately 30 meters from the Angra-II power plant in Angra dos Reis, Brazil. Its primary objective is to detect electron antineutrinos produced by the reactor and demonstrate the feasibility of using antineutrino detectors for real-time reactor monitoring with a surface detector. This effort aligns with the International Atomic Energy Agency’s (IAEA) mission to explore innovative technologies for nonproliferation safeguards. Surface operation presents challenges, such as high background noise, which necessitates the development of highly sensitive, compact detectors. These conditions make the Angra experiment an excellent platform for advancing detection techniques and gaining expertise in cutting-edge technologies and analysis methods. This presentation will discuss the latest results, derived from an extended dataset analyzed using Bayesian methods.

Speaker: Pietro Chimenti (Universidade Estadual de Londrina (UEL))

Angra_NNN24_Chimenti_1.0.pdf

16:45 Weak pion production in neutrino-nucleus scattering

In this presentation, we compute the charged current (CC) cross section
of the background processes $\nu_{\mu}(\bar{\nu}_{\mu})A\rightarrow\mu^{-(+)}+(A-1)N'\pi$
which are involved in the measurement of the oscillation probability
$P(\nu_{\mu}\rightarrow\nu_{e})$, and the CP-mirror $\bar{\nu}_{\mu}\rightarrow\bar{\nu_{e}}$
one. We develop a model that takes into account: binding effects,
nucleon smearing, and final state interactions (FSI) between nucleons-pions
and the residual nucleus. It was also suitable in describing the quasielastic
channel as $\nu_{\mu}(\bar{\nu}_{\mu})A\rightarrow\mu^{-(+)}(A-1)N'$,
keeping covariance, gauge invariance and partially unitarity. Our
calculations are compared with other dynamical models that have introduced
the \ensuremath{\Delta}(1232) resonance but inconsistently, and contrasted
with experimental actual data.

Speaker: Alejandro Mariano (IFLP,UNLP)

NNN2024_AMariano.pdf

17:05 → 17:35 Discussion

18:00 → 20:00 Welcome reception

Tuesday 29 October

09:00 → 10:00 Invited talks

Convener: João Carlos dos Anjos (CBPF)

09:00 Overview of neutrino oscillations

For more than two decades, neutrino flavor transitions have been observed at experiments with dedicated neutrino detectors (equipped with different technologies) aimed to observe different neutrino sources like the Sun, from cosmic rays interacting with the Earth atmosphere, as well as neutrinos from artificial sources produced in reactor and accelerator-based experiments. This wealth of data is well described by neutrino oscillations within the so called three-active neutrino framework. In this talk this framework will be reviewed, including the current status of the already measured neutrino oscillation parameters and the "known unknowns", all in all with the aim to give an overview of neutrino oscillations.

Speaker: David Vanegas Forero (Universidad de Medellin)

Overview_of_Neutrino_Oscillations_NNN24.pptx

09:30 PROSPECT-I final oscillation results and PROSPECT-II physics goals and detector design

The Precision Reactor Oscillation and SPECTrum (PROSPECT) experiment is a short-baseline reactor experiment built to measure the antineutrino spectrum from the High Flux Isotope Reactor (HFIR). The detector is made of 4 tons of Li-6 doped liquid scintillator divided into an 11x14 array of optically separated segments. The experiment searches for potential short-baseline oscillations and the existence of sterile neutrinos. PROSPECT has already set new limits on the existence of eV-scale sterile neutrinos while achieving the highest signal-to-background ratio on any surface antineutrino detector. The collaboration has developed an upgraded detector design, PROSPECT-II, which will increase the detector's statistics and physics sensitivity. In this talk, I will present the PROSPECT-I results and describe the major design features of the PROSPECT-II detector, highlighting improvements from the PROSPECT-I detector. In addition, I will discuss how those add to the oscillation and spectrum results.

Speaker: Ohana Benevides Rodrigues (Illinois Institute of Technology)

NNN_PROSPECT.pdf

10:00 → 10:30 Coffee break

10:30 → 11:30 Invited talks

Convener: João Carlos dos Anjos (CBPF)

10:30 Direct Neutrino Mass Measurements

Determining the absolute mass scale of the neutrino is one of the pressing questions in particle physics and cosmology.
While there are various complementary approaches to tackle this question, only upper limits have been set so far.
This talk will give an overview of current experiments based on decay kinematics, including the new world-leading limit from the KATRIN experiment and the latest results from calorimetric experiments ECHo and HOLMES.

Speaker: Alessandro Schwemmer (Technical University of Munich)

2024-10-29_DirectNuMassMeasurements_Schwemmer.pdf

11:00 Neutrinoless double beta decay: status and prospects of searches with liquid scintillator detectors

The discovery of neutrinoless double beta decay would have a far-reaching impact, so its search is a key goal of neutrino physics. It is also a rich experimental field where several experimental strategies have been employed and are being developed for the future. After a brief summary of motivations and an overview of the most recent results, this talk will focus on one of the leading techniques, that of employing large liquid scintillator detectors. Allowing very large masses of isotope, low intrinsic backgrounds and several background reduction strategies, liquid scintillator detectors have many advantages for neutrinoless double beta decay searches, that have been demonstrated by the achieved sensitivity of the KamLAND-Zen experiment, with Xenon. The SNO+ liquid scintillator experiment is taking data at SNOLAB and has been developing the use of natural Tellurium for its upcoming double beta decay phase, which is expected to push the sensitivity with Te-130 and pave the way for future higher-loading (and higher mass) developments.
After describing the current status and future prospects of KamLAND-Zen and SNO+, the talk will also cover ideas for future experiments employing the liquid scintillation technique.

Speaker: José Maneira

JManeira_DBD_NNN24.pdf

11:30 → 11:50 Contributed talk

11:30 The precise inverse beta decay

We evaluate the cross section of inverse beta decay, including all theoretical uncertainties. We focus on the moderate energy range from a few MeV up to hundreds of MeV, which includes neutrinos from reactors and supernovae. We assess the uncertainty on the cross section, which is relevant to experimental advances and increasingly large statistical samples. We also present a new parameterised model of electron antineutrino emission from supernova and test its adequacy in describing the distributions of energy, time and angle comparing with SN1987A data.

Speaker: Giulia Ricciardi

ricciardiNNN24.pdf

11:50 → 12:10 Discussion

12:10 → 14:10 Lunch

14:10 → 15:10 Contributed talk

Convener: Dr irina Nasteva (UFRJ)

14:10 Application of NuGraph to Proton Decay for Event Classification & Explorations of Nuclear Effects in the Deep Underground Neutrino Experiment

The Deep Underground Neutrino Experiment (DUNE) is an international collaboration of 1000+ researchers which will study neutrinos and search for phenomena predicted by theories Beyond the Standard Model (BSM). DUNE will use liquid argon time projection chambers (LArTPCs) containing 70 ktons of LAr, 40 ktons of which are active, located more than a kilometer underground. The high spatial resolution imaging capabilities of the LArTPC technology, in addition to the large size and underground location, allow the experiment to probe many types of rare processes while preventing cosmogenic background. One of these processes is nucleon decay with p → K⁺ ν̅. In this talk, I will discuss the implementation of NuGraph, a state-of-the-art graph neural network (GNN) operating natively on detector hits, as an event classifier for proton decay events. In addition to such new analysis approaches, I will discuss our current understanding of selection effects due to potential modeling choices of the intranuclear environment for this rare process.

Speaker: Tyler Stokes (Louisiana State University)

NNN_Talk_Final_TylerDStokes.pdf

14:30 Search for proton decay via $p\rightarrow{e^+\eta}$ and $p\rightarrow{\mu^+\eta}$ in Super-Kamiokande

Grand Unified Theories explain the unification of the electromagnetic, weak, and strong forces and most of them predict protons to decay into lighter particles. The latest result of the proton decay search for $p\rightarrow e^+/\mu^+ +\eta$ channels in Super-Kamiokande will be discussed in this presentation.
The cross sections of $\eta$ nuclear effect are improved compared to previous work, resulting in reducing their uncertainties by a factor of two. We analyze the data exposure of 0.373 Mton$\cdot$years (3244.4 live days) of Super-Kamiokande.
No significant data excess was found above the expected number of atmospheric neutrino background events and no indication of proton decay was observed for either mode.
The lower limits on the partial lifetimes of $1.4\times\mathrm{10^{34}~years}$ for $p\rightarrow e^+\eta$ and $7.3\times\mathrm{10^{33}~years}$ for $p\rightarrow \mu^+\eta$ were imposed at 90$\%$ CL, around 1.5 times longer limits than the previous study. These results set the most stringent limits in the world.

Speaker: Natsumi Taniuchi (The University of Tokyo)

NNN2024_NTaniuchi.pdf

14:50 Light and Charge yield study in LAr for Sub-keV energies up to 1 MeV.

Liquid Argon (LAr) Time Proportional Chambers (TPCs), is one of the most widely used scintillators in particle detection, due to its low cost, high availability and excellent scintillation properties. A large number of experiments in the neutrino sector are based around using LAr in one or more TPCs, leading to high resolution three-dimensional particle reconstruction. We present a first principles study of total quanta yield for liquid argon (LAr) and recombination process, using inter-atomic potentials, and the integro-differential equation solution for atomic motion with electronic straggling. We are going to introduce the electronic scaling length $\xi_e$ as a fundamental parameter and explain the physical observable related to it. We are going to study the energy and electric field dependence of exciton to ion ratio for nuclear recoils, based on Bates-Griffing atomic process and semiclasical atomic interactions. The results for light and charge yield are going to be given in terms of the recombination probability in the context of the Thomas-Imel box model, in terms of just two parameters, $\xi_e$ and a constant. An explanation and comparison with recent measurements of the box size electric field dependence, is going to be given for LAr and LXe.

Speaker: Youssef Sarkis Mobarak (ICN-UNANM)

NNN24Talk-youssef-2.pdf

15:10 → 15:30 Discussion

15:30 → 17:00 Poster

Wednesday 30 October

09:00 → 10:00 Invited talks

Convener: Alexander Argüello Quiroga (UNILA)

09:00 MicroBooNE Latest Results and Future Prospects

MicroBooNE is a 180 ton liquid argon time projection chamber designed for neutrino detection, located at Fermilab. The experiment purses a broad physics program including short baseline oscillation physics and probing the MiniBooNE/LSND anomalies, neutrino-nucleus cross section measurements, searches for physics beyond the standard model, and improving our understanding of the LArTPC technology ahead of experiments such as DUNE. MicroBooNE receives flux from two neutrino beams, the Booster Neutrino Beam and Neutrinos from the Main Injector (NuMI) which possess different flux characteristics and baselines. These facilitate both the breaking of degeneracies in oscillation measurements, and a wide variety of cross section measurements, including electron neutrino and anti-neutrino induced processes, as well as studies of novel kinematic imbalance observables sensitive to nuclear effects. The NuMI target also provides a potential source of BSM particles such as Axion-like particles and heavy neutral leptons.

Speaker: Christopher Thorpe (The University of Manchester)

NNN Talk_thorpe.pdf

09:30 ICARUS at the Short-Baseline Neutrino program: first results

The ICARUS collaboration employed the 760-ton T600 detector in a successful three-year physics run at the underground LNGS laboratory, performing a sensitive search for LSND-like anomalous $\nu_e$ appearance in the CERN Neutrino to Gran Sasso beam, which contributed to the constraints on the allowed neutrino oscillation parameters to a narrow region around 1 eV$^2$. After a significant overhaul at CERN, the T600 detector has been installed at Fermilab. In 2020 the cryogenic commissioning began with detector cool down, liquid argon filling and recirculation. ICARUS then started its operation collecting the first neutrino events from the Booster Neutrino Beam (BNB) and the Neutrinos at the Main Injector (NuMI) beam off-axis, which were used to test the ICARUS event selection, reconstruction and analysis algorithms. ICARUS successfully completed its commissioning phase in June 2022, moving then to data taking for neutrino oscillation physics, aiming at first to either confirm or refute the claim by Neutrino-4 short-baseline reactor experiment. ICARUS will also perform measurement of neutrino cross sections in LAr with the NuMI beam and several Beyond Standard Model studies. After the first year of operations, ICARUS will search for evidence of sterile neutrinos jointly with the Short-Baseline Near Detector, within the Short-Baseline Neutrino program. In this presentation, preliminary results from the ICARUS data with the BNB and NuMI beams are presented both in terms of performance of all ICARUS subsystems and of capability to select and reconstruct neutrino events.

Speaker: Laura Pasqualini (INFN and University of Bologna)

ICARUS at the Short-Baseline Neutrino program First results-LauraPasqualini.pdf

10:00 → 10:30 Coffee break

10:30 → 11:35 Invited talks

Convener: Alexander Argüello Quiroga (UNILA)

10:30 Status of the Short-Baseline Near Detector at Fermilab

The Short-Baseline Near Detector (SBND) is one of three Liquid Argon Time Projection Chamber (LArTPC) neutrino detectors positioned along the axis of the Booster Neutrino Beam (BNB) at Fermilab, as part of the Short-Baseline Neutrino (SBN) Program. The detector is currently being commissioned and is expected to take neutrino data this year. SBND is characterized by superb imaging capabilities and will record over a million neutrino interactions per year. Thanks to its unique combination of measurement resolution and statistics, SBND will carry out a rich program of neutrino interaction measurements and novel searches for physics beyond the Standard Model (BSM). It will enable the potential of the overall SBN sterile neutrino program by performing a precise characterization of the unoscillated event rate, and constraining BNB flux and neutrino-argon cross-section systematic uncertainties. In this talk, the physics reach, current status, and future prospects of SBND are discussed.

Speaker: Gustavo Valdiviesso (Unifal-MG (Universidade Federal de Alfenas))

Status of SBND - NNN.pdf

11:00 Hadron Production Experiments

Present and future accelerator-based neutrino experiments demand a precise estimation of systematic uncertainties to achieve the goal sensitivity of their measurements. One of their leading uncertainties comes from an inadequate understanding of primary and secondary hadron-nucleus interactions, which results in the large uncertainty of the neutrino flux. This contribution will review the hadron production uncertainty in neutrino experiments, the current hadron production experiments, such as the NA61/SHINE experiment at CERN and the EMPHATIC experiment at Fermilab, and discuss their recent efforts and future plans to reduce the flux uncertainty in the neutrino experiments.

Speaker: Lu Ren (University of Colorado Boulder)

LuRen_NNN_20241030.pdf

11:35 → 11:55 Discussion

Thursday 31 October

09:00 → 10:00 Invited talks

Convener: David Vanegas Forero (Universidad de Medellin)

09:00 Short-Baseline Anomalies and Sterile Neutrinos: where we stand and where we're going

TBD

Speaker: Mark Ross-Lonergan (Los Alamos National Lab)

Sterile_NNN2024_Rio_markrosslonergan_v1.pdf

09:30 Near Detectors that Move and Beam Monitors

Long-baseline neutrino oscillation experiments have been playing an important role to study the neutrino mixings. There are approved next generation experiments that will perform oscillation studies with unprecedented statistical precision, including the leptonic CP violation searches. To be able to take advantage of the high statistics, it is essential to improve constraints on event rate predictions compared to the ones that have been produced by the currently operating experiments, such as the NOvA and T2K experiments. In these experiments, near detectors are fixed to the same off-axis angle as their far detector and measure both beam neutrino fluxes going to their far detector and neutrino-nucleus cross-sections in a degenerated way. Results of such measurements are used to constrain uncertainties on event rate predictions at far detector. Since this type of approach suffers from unavoidable flux difference between near and far detectors due to oscillation effects, it is challenging for fixed detectors to produce constraints with precisions required by the next generation experiments. To this end, a concept of moving near detectors has been adopted by the next generation experiments. This talk will describe the difficulties in event rate constraints for the ongoing experiments and how the next generation experiments plan to overcome these challenges with moving near detectors.

Speaker: Dr Ryosuke Akutsu (IPNS, KEK)

NNN2024_Oct31_RyosukeAkutsu.pdf

10:00 → 10:30 Coffee break

10:30 → 12:00 Invited talks

Convener: David Vanegas Forero (Universidad de Medellin)

10:30 LAr purification for LBNF-DUNE: Brazil in-kind contribution

Liquified noble gases is frequently the choice of target for neutrino and dark matter experiments which requires an extremely high grade of purity of the liquids (in particular, in terms of oxygen contamination (< 100 ppt). Ultra-pure Liquid Argon (LAr) is the chosen target for the Long Baseline Neutrino Facility (LBNF) – Deep Underground Neutrino Experiment (DUNE) and related experiments. Brazil in-Kind contribution includes R&D, testing, construction and commissioning (including Facility Technical description, Facility lay-out, facility assembly process description, Master Plan encompass detailing, implementation and commissioning phases and commercial data) to complete engineering, design, manufacturing, testing, shipping and delivery of the Gaseous Argon (GAr) purification, LAr purification and Regeneration Systems for Detectors #1 and 2#.
In this talk, we will describe the conceptual Project Design of these systems and the proposals for innovative methods of LA purification, including capturing of nitrogen, which is a desirable additional feature to increase the control of the LAr purity in case of unexpected leaks and to allow the advanced use of the LAr scintillation light beyond the initial requirements of LBNF-DUNE. FAPESP Project # 2024/07128-7,

Speaker: Pascoal Jose Giglio Pagliuso (Unicamp - Brazil)

Pascoal_Slides_NNN2024.pptx

11:00 LAr Purificarion for LNFB-DUNE Fluid Dynamics Analysis of the LAr Purification in Prototype Systems

Liquefied ultra-pure noble elements are typically used in neutrino and dark matter experiments. Achieving the necessary purity of these cryogenic liquids, particularly in terms of oxygen contamination (< 100 ppt), requires continuous circulation of gaseous argon (GAr) and liquid argon (LAr) through adsorption columns filled with solid adsorbents that capture oxygen, nitrogen, and water. This level of purity is especially critical for the LBNF-DUNE project, as even trace amounts of nitrogen and oxygen can significantly affect LAr scintillation light, which is essential for the experiment’s detection process. Notably, scintillation light emission is adversely affected by nitrogen concentrations as low as 1 ppm and oxygen concentrations starting at 0.1 ppm, leading to a reduction in the lifetime and relative amplitude of the slow scintillation component. Meeting these purity requirements presents several engineering challenges in the design of the LAr and GAr purification systems. Three primary challenges are: Integrating the LAr and GAr Flow Systems and Managing Pressure Drop; Heat Transfer in the LAr System; and Filter Design and Adsorbent Selection. Integration of the flow systems must consider the total pressure drop across the pipes and accessories, which is essential for the pump design. The unavailability of commercial pumps capable of handling the head loss and flow rate required for cryogenic fluids complicates this task, as accurately predicting pressure drops is key to specifying suitable pumps. The design of the heat exchangers, particularly condensers, depends on the amount of heat absorbed by the LAr during circulation. Heat transfer management is crucial to prevent vaporization and maintain cryogenic temperatures within the detector and its associated components. Correctly predicting heat transfer and pressure drop ensures the system’s total power consumption remains optimized. Finally, the filtering system’s design must define the number of filters, the mass of adsorbent in each filter, the saturation time, and the number of cycles until saturation. While BASF Cu-0226S and Mol Sieve 4A adsorbents are typically used to capture oxygen and water, nitrogen capture is more complex. Recently, experimental studies in the Liquid Argon Purification Cryostat (PuLArC, ~ 90 L of LAr) at IFGW/Unicamp demonstrated successful nitrogen removal using an innovative Li-FAU Molecular Sieve. These findings were confirmed by similar experiments conducted in the ICEBERG cryostat (~ 3000 L of LAr) at Fermilab, indicating the effectiveness of the Li-FAU adsorbent in purifying LAr from nitrogen. Building on these experimental results, a mathematical model based on mass and energy balances was developed and solved to better understand the adsorption process. The model, incorporating a Pore Diffusion Model (PDM) with parameter optimization, accurately predicted nitrogen concentrations under various operating conditions in the PuLArC and ICEBERG cryostats. This model provides a valuable tool for scaling up the purification process and optimizing system performance for the LBNF-DUNE project. The experiments at ICEBERG confirmed the Li-FAU Molecular Sieve’s capacity to capture nitrogen from LAr, sparking discussions about its potential use in other LAr-based experiments at Fermilab and CERN. This study contributes significantly to the design of the LAr and GAr purification systems for LBNF-DUNE, allowing researchers to predict the time required to reach the desired purity from an initial contamination level and estimate the number of purification cycles before adsorbent saturation.

Speaker: Prof. Dirceu Norlier (Unicamp - Brazil)

NNN2024_LAr_Purification_Fluid_Dynamics.pdf

11:30 The ionisation laser calibration system for DUNE

The Deep Underground Neutrino Experiment (DUNE) will use a neutrino beam, a near detector, and a set of massive far detectors to fully probe the three-neutrino oscillation paradigm. Measurements of neutrino mass ordering and CP violation will be possible in a single experiment, thanks to the exceptionally long baseline of 1,285 km combined with the wide energy spectrum covering two oscillation maxima, and the tracking and calorimetric capabilities of the liquid argon time projection chamber (LAr TPC) technology. Strict control of systematic uncertainties is also necessary, requiring thorough calibration of the DUNE detectors. In addition to the use of natural sources, deployed systems will also be used to calibrate DUNE's far detectors and the ionization laser system is one of them.
Via a 3-photon process, intense UV laser beams can ionize liquid argon and create straight tracks similar to muons. The laser system allows the creation of such tracks in precisely known locations inside the TPC and the modulation of their intensity. By comparing known and reconstructed track positions, this allows the observation of electric field distortions (due to space-charge or detector defects), but also the study of several effects on charge propagation and collection.
The prototype of this calibration systme has been designed, fabricated, and installed in the ProtoDUNE-HD and ProtoDUNE-VD 1-kton scale LAr TPC prototype detectors, part of the Neutrino Platform at CERN. In this talk, we will present the design of the system, tests and validation, and integration in the ProtoDUNE-HD and ProtoDUNE-VD along with preliminary results from the commissioning phase at CERN.

Speaker: José Maneira (LIP Lisbon)

JManeira_LaserDUNE_NNN24.pdf

12:00 → 12:15 Discussion

12:15 → 14:15 Lunch

14:15 → 15:15 Invited talks

Convener: Gustavo Valdiviesso (Unifal-MG (Universidade Federal de Alfenas))

14:15 Novel LArTPC technologies for near detectors

To explore the neutrino sector through oscillation experiments, we measure neutrino flavor transformations as a function of energy at the far detector. A near detector (ND), positioned close to the beam source, offers vital in-situ constraints on key uncertainties in flux, neutrino cross-sections, and detector smearing. Liquid argon TPC (LArTPC) technology has revolutionized neutrino interaction imaging with enhanced precision and resolution, and is now a key detector component in numerous experiments.

In this talk, I will discuss the technologies, design, and purpose of various LArTPCs being deployed as near detectors in accelerator-based neutrino oscillation experiments. I will highlight the recently operational Short Baseline Near Detector (SBND) at Fermilab in the BNB beam and the LAr ND for the upcoming long-baseline Deep Underground Neutrino Experiment (DUNE). I will describe how advancements in LArTPC technology tackle the challenges of high-power beams at the ND, where intense neutrino flux can rapidly saturate a monolithic LArTPC with projective wire readout due to charge pile-up. To address this, the ND-LAr for DUNE is designed as a modular detector featuring optically isolated TPC modules and pixelated charge readout.

Speaker: Zoya Vallari

20241031_NNN_LArND_ZV.pdf

20241031_NNN_LArND_ZV.pptx

14:45 DUNE Far Detector: current and new technologies

The primary objectives of Deep Underground Neutrino Experiment (DUNE) include testing the CP violation in the neutrino sector and the hierarchy of neutrino masses. In this talk, I will present the Far Detector (FD) and its role in achieving the DUNE physics goals. I will present FD design and its capabilities in measuring beam neutrinos and neutrinos from other sources, including astrophysical. I will discuss the technologies of the first two modules and show the differences between Horizontal Drift and Vertical Drift. I will briefly discuss the role of the photodetection system and the challenges in improving it. Finally, I will discuss prospects for the following two modules and how they can enhance DUNE sensitivity to oscillation parameters such as mass hierarchy and delta-CP phase.

Speaker: André Fabiano Steklain Lisbôa (Universidade Tecnológica Federal do Paraná)

DUNE_FD_NNN_Steklain.pdf

15:15 → 15:45 Coffee break

15:45 → 16:45 Invited talks

Convener: Gustavo Valdiviesso (Unifal-MG (Universidade Federal de Alfenas))

15:45 COHERENT: Latest Results and Future Prospects

COHERENT is a suite of neutrino detectors located in a basement hallway of the Spallation Neutron Source at Oak Ridge National Laboratory, where there is an intense pulsed flux of neutrinos from stopped pion decay. In 2017, COHERENT made the first observation of coherent elastic neutrino nucleus scattering (CEvNS), in a 14 kg cesium iodide (CsI) detector. Since then, we have improved our measurement on CsI and added CEvNS measurements on argon and germanium. In addition to CEvNS measurements we have made electron neutrino charged current measurements on lead and sodium, with more charged current searches underway. This talk will discuss the latest results and future prospects of the COHERENT Collaboration.

Speaker: Jonathan Link (Virginia Tech)

8-COHERENT-NNN2024.pptx

16:15 CONNIE latest results and future prospects

The CONNIE experiment employs high-resistivity silicon CCDs to detect coherent elastic neutrino-nucleus scattering (CEvNS) of reactor antineutrinos with silicon nuclei at the Angra-2 reactor. In 2021, the experiment was updated with two Skipper-CCDs, improving the sensitivity down to 15 eV. This introduces Skipper-CCDs as a novel tool in reactor neutrino detection. We present new results from 300 days of data collected between 2021 and 2022, totaling an exposure of 18.4 g-days. No excess was observed in the difference between the reactor-on and reactor-off periods, resulting in upper limits at 95% CL on CEvNS. Additionally, we explore the potential of Skipper-CCDs through three searches for new physics: constraints on neutrino interactions via light vector mediators, limits on dark matter-electron scattering from diurnal modulation, and a search for relativistic millicharged particles generated by reactors. Finally, we discuss future plans for increasing the detector mass.

Speaker: Carla Bonifazi (ICAS-ICIFI-UNSAM/CONICET & IF-UFRJ)

NNN_CONNIE_Bonifazi.pdf

16:45 → 17:45 Contributed talk

Convener: Gustavo Valdiviesso (Unifal-MG (Universidade Federal de Alfenas))

16:45 NuDoubt++: Search for Double Beta Decays in a Novel Hybrid Opaque Scintillation Detector

Double beta plus decay is a rare nuclear disintegration process. Difficulties in its measurement arise from suppressed decay probabilities, experimentally challenging decay signatures and low natural abundances of suitable candidate nuclei. In this presentation, we propose NuDoubt++, a new detector concept to overcome these challenges. It is based on the first-time combination of hybrid and opaque scintillation detector technology paired with novel light read-out techniques. This approach is particularly suitable detecting positrons (beta plus) signatures. We expect to discover two-neutrino double beta plus decay modes within 1 tonne-week exposure and are able to probe neutrinoless double beta plus decays at several orders of magnitude improved significance compared to current experimental limits.

Speaker: Stefan Schoppmann

2024-10-31_NuDoubt.pdf

17:05 The Eos experiment

Eos is a 20-ton neutrino detector located on the University of California Berkeley campus. It is a hybrid technology demonstrator that utilizes Cherenkov and scintillation light simultaneously to detect particle interactions. Construction was finished in early 2024. It has a fiducial volume of four-ton, featuring 242 photomultiplier tubes, including ultra-fast PMTs and dichroicons for spectral sorting, and a novel liquid scintillator (LS) target. Commissioning is complete, and the detector is currently filled with water. Multiple sources have been deployed in the detector for calibrations before the injection of LS. The results of the multi-ton scale Eos detector will be valuable to extrapolate the performance to future multi-kiloton scale hybrid detectors, such as Theia. This contribution will give an overview of the Eos project, current status of data-taking, as well as its potential applications in the future.

Speaker: Lu Ren (University of Colorado Boulder)

LuRen_NNN_EOS_20241031.pdf

17:25 Searching for astrophysical tau neutrinos: A TAMBO overview

The detection of high-energy astrophysical neutrinos by IceCube has unveiled a new way to observe our Universe. Despite IceCube's success in measuring the high-energy astro flux up to energies reaching several PeV, much remains to be discovered regarding their origin and nature. The identification of high-energy astro-neutrino sources is largely hindered by atmospheric neutrino backgrounds; likewise, astro-neutrino flavor ratio measurements are limited by the difficulty of discriminating between electron and tau neutrinos. TAMBO is a next-generation neutrino observatory specifically designed to detect Earth-skimming tau neutrinos in the 300 TeV - 100 PeV energy range. To be located on the slopes of the Colca Valley in the Peruvian Andes, TAMBO's
unique observatory design enables a nearly background-free identification of astro-neutrino sources and a probe of the astro-neutrino flavor ratio. In this talk, I will present the prospects of TAMBO in the context of next-generation neutrino observatories and provide an overview of its current status.

Speaker: Pavel Zhelnin (Harvard University)

NNN24TAMBO.pdf

17:45 → 18:15 Discussion

19:00 → 21:00 Workshop dinner

Friday 1 November

09:00 → 10:00 Invited talks

Convener: Magda Bittencourt Fontes (Centro Brasiliro de Pesquisas Sísicas)

09:00 Photon Detection in Neutrino Physics

Light detection plays a central role in many current and planned neutrino experiments. This field has seen the flowering of many new ideas in the last few years, thanks to the development of new photo-sensors and new detection techniques, based on the use of advanced materials. This talk will review the most innovative and promising approaches to photon detection in neutrino physics in the last years with an eye on future applications.

Speaker: Ettore Segreto (Universidade Estadual de Campinas)

nnn_rio_2024__segreto.pdf

09:30 Exploring New Avenues for Neutrino Detection with ANNIE: Milestones and Firsts

The Accelerator Neutrino Neutron Experiment (ANNIE) is a 26-ton Fermilab-based effort studying neutrino cross-section physics on a water target, with particular attention to final-state neutron yields. The goal of ANNIE’s physics program is to better understand and constrain key systematic uncertainties on next-generation neutrino oscillation experiments. ANNIE is also a leading R&D platform studying next generation technologies for hybrid Cherenkov/scintillation neutrino detectors, with recent achievements including the first detection of neutrinos in water-based Liquid Scintillator (wbLS) and the first detection of neutrinos with Large Area Picosecond Photodetectors (LAPPDs). In this talk we present on the newest developments from ANNIE, with particular focus on the milestones achieved in making LAPPDs and wbLS application-ready for large future neutrino experiments.

Speaker: Matthew Wetstein (Iowa State University)

2024-10 ANNIE NNN.pdf

10:00 → 10:30 Coffee break

10:30 → 12:00 Invited talks

Convener: Magda Bittencourt Fontes (Centro Brasiliro de Pesquisas Sísicas)

10:30 Systematic Uncertainties in Future Neutrino Oscillation Experiments

The next generation of neutrino-oscillation experiments, DUNE, Hyper-K and JUNO, will push our understanding of the mixing parameters into the precision regime. As our knowledge of the parameters will no longer be statistically limited, a robust understanding of the systematic uncertainties in their measurement is crucial to avoid biases. More sophisticated models will be necessary to fully take advantage of the data available, and a range of both internal and external interaction, flux, and detector-performance measurements will be needed to inform these models and ensure accurate results.

Speaker: Joseph Walsh (Michigan State University)

JWalsh_NNN24_SystematicsForFutureOscillationExperiments.pdf

11:00 Scintillator detectors: SuperFGD, MINERvA, LiquidO

Scintillator detectors have been widely used in the modern neutrino experiments as active target and new detector technology is being actively developed. This report reviews following three scintillation detector technologies. The MINERvA detector uses plastic scintillator strips and has been operating since 2010 to study neutrino interaction with various nuclei. The SuperFGD detector exploits scintillator cubes for high granularity and started its operation in 2023 as a part of the T2K near detector. The novel LiquidO technique utilizes opaque liquid scintillator as a self-selfsegmented detector, targeting future experiments such as CLOUD and SuperChooz.

Speaker: Hikaru Tanigawa (KEK)

NNN24_Tanigawa.pdf

11:30 SuperFGD: A high-granularity detector for improved neutrino interaction measurements in T2K

The Tokai-to-Kamioka (T2K) experiment is a long-baseline neutrino oscillation experiment that sends high-intensity neutrino beams from J-PARC to the Super-Kamiokande detector, 295 km away. Recent T2K results indicated CP violation in the neutrino sector with a 90% confidence level. To enhance the experimental sensitivity, T2K completed its off-axis near detector upgrade in May 2024 and began operations to improve neutrino interaction measurements. At the core of this upgrade is the novel high-granularity scintillation detector, SuperFGD. This fully-active detector consists of approximately 2 million optically-isolated 1 cm plastic scintillator cubes. Scintillation light from the cubes is read out by around 56,000 channels across three orthogonal directions, using wavelength-shifting fibers coupled to MPPCs. SuperFGD provides excellent detection efficiency across a wide angular range, the ability to detect low-energy particles, and neutron detection capabilities. This report will cover the SuperFGD construction, commissioning and status of detector performance evaluations.

Speaker: Mr Hokuto Kobayashi (The University of Tokyo)

NNN24_SuperFGD_Hokuto.pdf

12:00 → 12:20 Discussion

12:20 → 14:20 Lunch

14:20 → 15:00 Contributed talk

Convener: Chang Kee Jung (SUNY)

14:20 Constraining the (3+2) sterile neutrino scenario with the IceCube experiment.

In this letter we are using the IceCube experiment to test, phenomenologically, the (3+2) sterile neutrino scenario. As far is known, the presence of sterile states with mass splitting ∆m²∼1 eV² distorts the angular and energy distributions of reconstructed muon events, observed by IceCube, through parametric and MSW resonances. Since the distortions introduced by the sterile neutrino (3+2) scenario appear arround of few TeV, where the Ice-Cube detection is highly optimized, here we have a great opportunity to prove scenarios with sterile states. Supporting by previous works, some considerations have be done in order to guarantee a conservative and robust bounds. Then, by using one year data colleted by IceCube between 2011-2012 we constrain the (3+2) parameter space scenario.

Speaker: Alexander Argüello Quiroga (UNILA)

NNN24-quiroga.pdf

14:40 Neutrino decoherence in Normal matter

We consider the decoherence effects in the propagation of active neutrinos due to the non-forward neutrino scattering processes in a matter background composed of normal matter. We calculate the contribution to the imaginary part of the neutrino self-energy arising from such processes. Since the initial neutrino state is depleted but does not actually disappear (the initial neutrino transitions into a neutrino of a different flavor but does not decay) those processes should be associated with decoherence effects. Using the notion of the stochastic evolution of the state, we identify the jump operators, as used in the context of the Lindblad equation, in terms of the results of the the calculation of the non-forward neutrino scattering contribution to the imaginary part of the neutrino self-energy. We consider the solution to the evolution equation in the two-generation case. We give formulae that are useful for estimating the effects of the decoherence terms under various conditions and environments, including the typical conditions applicable to long baseline experiments, where matter effects are important. In those contexts the effects appear to be small, and indicative that if significant decoherence effects were to be found they would be due to non-standard contributions to the decoherence terms.

Speaker: Prof. Sarira Sahu (ICN, UNAM, Mexico City)

7-NNN24_S_Sahu.pdf

15:00 → 15:30 Coffee break

15:30 → 15:45 Poster: Poster talks

Convener: Chang Kee Jung (SUNY)

15:30 The Study of Neutrino-Nucleus Interaction Using The Fermi Gas and The Modified Fermi Gas Models

This study explores the Relativistic Fermi Gas Model (RFG) and the Modified Fermi Gas Model (MFG), which have been widely used to characterize quasi-elastic neutrino-nucleus interactions. The RFG considers nucleons as a gas of free particles within the nucleus; nevertheless, it is limited in its ability to account for nuclear correlations and binding energies. The MFG improves the RFG by integrating adjustments for these correlations and delivering a more precise spectral function. Comparisons between these models and experimental data are performed to enhance the understanding of neutrino interactions and the reconstruction of their energy.

Speaker: Luiz Felipe Brandão Magalhães Rodrigues (Universidade Federal de Alfenas (UNIFAL-MG))

Poster NNN Luiz Felipe (84x112)cm_20241101_093914_0000.pdf

15:35 Impact Of The Earth's Density Profile On Atmospheric Neutrino Oscillations

Atmospheric neutrinos have yielded groundbreaking discoveries in particle
physics, providing compelling evidence for neutrino mass and emphasizing the
importance of probing neutrino oscillations in diverse environments. The Deep
Underground Neutrino Experiment (DUNE) boasts an extensive oscillation
program with atmospheric neutrinos, employing innovative, low threshold, high
spatial resolution detectors with great potential for high energy and angular
resolutions. As neutrinos traverse the Earth, the matter potential influences their
oscillation probabilities in intricate ways, enhancing and suppressing the
conversion of one neutrino's flavor to another along the propagation. The first
module of DUNE's Far Detectors (FD) is expected to begin operation in 2029 so
atmospheric neutrinos will be the first FD neutrino data of the collaboration.
Therefore, comprehending their behavior within Earth's complex density
profile, primarily described by the Preliminary Reference Earth Model (PREM),
is essential for accurately describing oscillations and determining expected
event rates in the FD. In this study, we address this challenge by considering an
ensemble of Earth models constrained by astronomical measurements of the
planet's mass and moment of inertia. We evaluate how variations in densities
and layer boundaries can affect oscillation probabilities and event rates, and
what implications this could have on various physics analyses. Thus, this work
not only enhances our understanding of atmospheric neutrino oscillations, but
also provides crucial information for future studies and experimental endeavors
in DUNE. This includes implications for oscillation physics, as uncertainties in
matter densities may directly impact sensitivity analyses, alongside BSM
searches, where atmospheric neutrinos serve as a primary source of background.
This work also serves as a starting point for a study of Neutrino Tomography of
the Earth, where we can count events in specific energy and angular bins while
making use of statistical methods to infer the density and composition of the
planet's layers.

Speaker: Marcelo Ismerio M L de Oliveira (Universidade Federal do Rio de Janeiro)

NNN24_Marcelo.pdf

15:40 Kaon Reconstruction Improvement with Pandora Reconstruction for Proton Decay Searches at the Deep Underground Neutrino Experiment

The existence of Grand Unified Theories describing the unification of the electromagnetic, weak, and strong forces is still an open question. One of the notable features of these theories is the prediction of protons decaying into lighter particles with long lifetimes of order $10^{30}$-$10^{40}$ years. Although many studies have been conducted assuming various decay channels so far, such decays have yet to be observed. In particular, the sensitivity to decay modes involving kaons in Cherenkov detectors is hampered by the fact that kaons produced in proton decay are under detection thresholds due to their heavy mass. The Deep Underground Neutrino Experiment (DUNE) is a state-of-the-art international experiment aiming to reveal the nature of neutrinos and proton decay amongst other BSM topics. DUNE's far detector will utilise a liquid argon time projection chamber (LArTPC) with an active volume of 40kt. The LArTPC technology will allow direct observation of the track of $K^+$ with high accuracy of particle identification and detection efficiency. For the further improvement on the detection, a novel event reconstruction algorithm for $K^+$ has been developed to distinguish the track-like hits of signals from shower-like hits from the background. In this presentation, the performance of the reconstruction algorithm and the event selection method using machine learning techniques for $K^+$ detection on simulated proton decay events via $p\rightarrow\nu K^+$ will be described.

Speaker: Natsumi Taniuchi (University of Cambridge)

NNN2024_NTaniuchi_poster.pdf

15:45 → 16:25 Summary talks

Convener: Chang Kee Jung (SUNY)

15:45 Summary talk

Speakers: Luciana Hirsch (UTFPR), Marcio Adames (UTFPR)

utfpr-slides.pdf

16:25 → 16:45 Discussion

16:45 → 16:55 NNN 25

16:45 NNN25

Speaker: Dr Jodi Cooley (SNO)

NNN25-Sudbury.pdf

16:55 → 17:10 Closing remarks

16:55 closing

Speaker: Chang Kee Jung (SUNY)

NNN24-Rio-closing.pptx

17:00 Closing remarks

Speakers: Helio da Motta (Centro Brasileiro de Pesquisas Fisicas), David Martinez

closing_presentation_helio.pdf