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...
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...
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
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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;...
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...
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...
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...
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...
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...
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)...
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...
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...
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...
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...
