Conveners
Neutrino Physics and Astrophysics: parallel session 1A
- William McDonough (Tohoku University)
Neutrino Physics and Astrophysics: parallel session 1B
- Thomas Schwetz-Mangold
Neutrino Physics and Astrophysics: parallel session 2B
- Yosuke Ashida (Tohoku University)
Neutrino Physics and Astrophysics: parallel session 2A
- Yury Kolomensky
Neutrino Physics and Astrophysics: parallel session 3B
- Yufeng Li (Institute of High Energy Physics, Beijing)
Neutrino Physics and Astrophysics: parallel session 3A
- Manfred Lindner (Max Planck Institute for Nuclear Physics)
Neutrino Physics and Astrophysics: parallel session 4A
- Steven Biller (Oxford University)
Neutrino Physics and Astrophysics: parallel session 4B
- Qun Wu (Shandong University)
Neutrino Physics and Astrophysics: parallel session 5A
- Carsten Krauss
Neutrino Physics and Astrophysics: parallel session 5B
- Mauricio Bustamante (Niels Bohr Institute, University of Copenhagen)
Neutrino Physics and Astrophysics: parallel session 6A
- Masaki Ishitsuka (Tokyo University of Science)
Neutrino Physics and Astrophysics: parallel session 6B
- Christoph Wiesinger
Neutrino Physics and Astrophysics: parallel session 7B
- Giorgio Gratta
Neutrino Physics and Astrophysics: parallel session 7A
- Lukas Berns
Neutrino Physics and Astrophysics: parallel session 8B
- Ke Han (ไธๆตทไบค้ๅคงๅญฆ)
Neutrino Physics and Astrophysics: parallel session 8A
- Piera Sapienza
The Double Chooz experiment, located near the Chooz Nuclear Power Plant (France), has provided precise measurements of the neutrino mixing angle ฮธ13 through the detection of antineutrinos from reactor cores. This multi-detector experiment, comprising a far detector located approximately 1050 metres from the reactors and a near detector at about 400 metres, was designed to minimise systematic...
Neutrinoless double beta decay (0๐๐ฝ๐ฝ) is an extremely rare process that, if observed, would confirm the Majorana nature of neutrinos. KamLAND-Zen, an extension of the KamLAND neutrino detector in Japan using 136Xe dissolved in liquid scintillator, currently sets the most stringent limit on the 0๐๐ฝ๐ฝ half-life of Xe-136. In this talk, I will present the latest KamLAND-Zen results, based on the...
The MicroBooNE experiment utilizes an 85-tonne active mass liquid argon time projection chamber neutrino detector. It can distinguish between photon and electron electromagnetic showers and select charged-current electron neutrino and muon neutrino events with exceptional performance. In this talk, we will present new results on MicroBooNE's investigation of the MiniBooNE Low Energy Excess...
After collecting more than five years of continuous data and accumulating over 2.8 tonneยทyears of TeO$_2$ exposure, CUORE has firmly established itself as a leading cryogenic calorimeter experiment for rare-event searches. We present a summary of our latest results which, along with our unprecedented cryogenic performance, demonstrate our readiness to tackle a different set of new challenges....
The MicroBooNE experiment is an 85-ton active mass liquid argon time projection chamber (LArTPC) neutrino detector situated in the Fermilab Booster Neutrino Beam (BNB). In this talk, we will present several new results of the experiment's investigations of the MiniBooNE Low Energy Excess in both the single-photon and electron-positron channels, probing the Standard Model background...
The search for neutrinoless double beta 0ฮฝฮฒฮฒ decay is considered as the only feasible way to prove the Majorana nature of neutrinos as well as to give indication on the mass hierarchy and on the absolute mass scale. Moreover, the discovery and observation of 0ฮฝฮฒฮฒ decay would be the first indication of lepton number violation and have substantial repercussions on cosmology, giving a possible...
SuperNEMO is a double-beta-decay experiment, whose isotope-agnostic tracker-calorimeter architecture has the unique ability to track trajectories and energies of individual particles. If the hypothesised lepton-number-violating process, neutrinoless double-beta decay (0ฮฝฮฒฮฒ), is discovered, this full topological event reconstruction will be the only way to determine the mechanism. The detector...
The Daya Bay reactor neutrino experiment, pioneering the measurement of a non-zero value for the neutrino mixing angle ฮธ13 in 2012, operated for about nine years from Nov. 24, 2011, to Dec. 12, 2020. Antineutrinos emanating from six reactors with a thermal power of 2.9 GWth were detected by eight identically designed detectors, which were positioned in two near and one far underground...
We present an updated global analysis of the standard three-neutrino (3ฮฝ) framework, incorporating the latest oscillation and nonoscillation data available at the start of 2025. Notably, we report subpercent-level precision in the determination of the atmospheric mass-squared splitting, marking a significant milestone in neutrino oscillation physics. Our analysis reveals evolving constraints...
Neutrinoless double-beta decay (0ฮฝฮฒฮฒ) is a key process in addressing some of the most significant open questions in particle physics, namely the conservation of lepton number and the Majorana nature of the neutrino. Over the past decades, extensive efforts have been dedicated to improving the sensitivity of 0ฮฝฮฒฮฒ half-life measurements across multiple isotopes. The next generation of...
The Large Hadron Collider (LHC) is not only the most powerful particle accelerator ever built but also a unique source of an intense, high-energy beam of neutrinos spanning all flavors, predominantly collimated in the forward direction. After nearly 15 years of LHC operation, the first detection of collider-produced neutrinos was achieved by the dedicated FASER and SND@LHC experiments. This...
The search for neutrinoless double-beta decay (NLDBD) provides insights to the Majorana or Dirac nature of neutrinos, as well as their mass. PandaX-4T experiment, located at the China Jinping Underground Laboratory, uses a dual-phase xenon time projection chamber with 3.7-tonne natural xenon (8.9% Xe-136 abundance) in the sensitive volume. In this talk, I will present the optimization of data...
The CDEX-300 is a next generation neutrinoless double beta (0$\nu\beta\beta$) decay experiment based in China Jinping underground laboratory (CJPL). CDEX-300 aims at searching the 0$\nu\beta\beta$ decay of Ge-76 in the inverted neutrino mass hierarchy using high purity germanium (HPGe) detectors. We propose to build a 200 kg HPGe array with 2.5 keV (FWHM) energy resolution and 1E-4...
The Forward Physics Facility (FPF) is a proposed program to build an underground cavern with the space and infrastructure to support a suite of far-forward experiments at the Large Hadron Collider in the High Luminosity era (HL-LHC). The Forward Liquid Argon Experiment (FLArE) is a Liquid Argon Time Projection Chamber (LArTPC) based detector designed for very high-energy neutrinos and search...
The AMoRE experiment has been searching for neutrinoless double beta decay in Mo-100 nuclei, setting the most stringent limit to date on the half-life of the decay as larger than 2.9 x 10^24 years at 90% CL. The experiment is now advancing toward the AMoRE-II phase, which aims for a sensitivity of 4.5 x 10^26 years, utilizing a large cryogenic calorimeter array with lithium molybdate crystals...
The SND@LHC experiment was designed to perform measurements with neutrinos produced at the LHC within the unexplored pseudo-rapidity range of 7.2 < ๐ < 8.6. Located 480 m downstream of IP1 in the unused TI18 tunnel, this compact and stand-alone experiment employs a hybrid detector system consisting of 800 kg of tungsten plates interleaved with emulsion and electronic trackers, complemented by...
We present IceCat-2, the planned update of IceCube's public catalog of high-energy neutrino alerts, which builds on the first release, IceCat-1. The original catalog included all real-time alerts sent out since 2016, as well as earlier events from 2011 onward that would have triggered alerts if the system had been active at the time. IceCat-2 includes more recent alerts and reprocesses the...
The search for neutrinoless double beta decay (0vbb) is one of the most important topics in neutrino physics. Multiple next generation ton-scale experiments are planned worldwide with sensitivities to effective Majorana neutrino mass covering the entire inverted mass ordering phase space. A multi-isotope campaign around the world is also necessary for an unambiguous discovery for this rare...
A Xenon ElectroLuminescence (AXEL) experiment aims to search for neutrinoless double beta decay (0$\nu\beta\beta$) using a high-pressure xenon gas time projection chamber. We have developed a novel ionization-electron counter called Electroluminescence Light Collection Cell (ELCC), which enables to achieve excellent scalability and background rejection with track patterns and superior energy...
We report on a search using the IceCube Neutrino Observatory for MeV neutrinos from compact binary mergers detected through gravitational waves during the LIGO-Virgo-KAGRA (LVK) O1, O2, and O3 observing runs. The search focuses on events involving at least one neutron star, such as binary neutron star (BNS) and neutron starโblack hole (NSBH) mergers, which may produce a burst of thermal...
High-energy neutrinos are unique messengers that offer insights into the mechanisms powering the most extreme cosmic accelerators. Astrophysical sources capable of producing cosmic rays are expected to emit both neutrinos and gamma rays, establishing a strong connection between these two signals. By modelling the link between observed gamma-ray spectra and the expected neutrino flux, it is...
BINGO is a technology demonstrator dedicated to the development of innovative background reduction techniques for cryogenic calorimetric searches for neutrinoless double beta decay ($0\nu\beta\beta$). Targeting a background index of $10^{-5}$ counts/(keVยทkgยทyr), BINGO aims to establish a path toward a nearly background-free $0\nu\beta\beta$ experiment based on a tonne-scale deployment of...
The detection of a 220 PeV muon neutrino by the KM3NeT neutrino telescope presents a unique opportunity to investigate the Universe at extreme energies. Three scenarios have been proposed to explain this event: emission from a transient point source, diffuse astrophysical background emission, and line-of-sight interactions of ultrahigh-energy cosmic rays. At present, no other detectors have...
In this talk, I will discuss the impact of NME uncertainties on the upper limit of the effective neutrino mass in the light neutrino mechanism, where the contribution of the short range contact term is also considered. Inย this scenario. On the other hand, I will discuss the neutrino mass dependent NME and derive the limit on the parameter space of the minimal Type-I seesaw model from the...
The AMoRE collaboration aims to investigate rare processes, including neutrinoless double electron capture ($0\nu2\mathrm{EC}$), an intriguing alternative to neutrinoless double-beta decay for exploring the fundamental nature of neutrinos. We will present a comprehensive analysis of the $0\nu2\mathrm{EC}$ process in $^{40}\mathrm{Ca}$, utilizing the high-purity, enriched calcium molybdate...
As the world's largrest water Cherenkov detector, Super-Kamiokande (SK) has confirmed the MSW effect through observation of solar neutrino.A newly developed spallation removal method for SK-IV has improved the signal efficiency by 12.6%.The measurements from SK-I to SK-IV has verified the day-nignt asymmetry and large mixing angle results. The flux has been measured with high precision, and SK...
The nuclear matrix elements of neutrinoless double beta decay are a dominant source of uncertainty when connecting the decay rate to article-physics properties. Due to its large momentum transfer, ordinary muon capture offers a promising method to benchmark nuclear matrix element calculations under similar conditions. When a muon is captured on a double beta daughter isotope, the...
The XENONnT experiment at the INFN Laboratori Nazionali del Gran Sasso aims to detect dark matter candidatesโWeakly Interacting Massive Particles (WIMPs)โby observing their interactions with xenon nuclei. An especially intriguing aspect of this search is the potential observation of coherent elastic neutrino-nucleus scattering (CEvNS) from Boron-8 solar neutrinos, which can mimic WIMP signals....
Next generation $^{100}$Mo based neutrinoless double beta decay searches like AMoRE and CUPID require a precise understanding of the detector response of cryogenic $^{100}$Mo based detectors at the Q-value (3034 keV) of the $0\nu\beta\beta$ decay. However, common long-lived calibration sources like $^{208}$Tl provide the last intense calibration peaks at or below 2.6 MeV and hence require an...
The XENONnT experiment, located at Laboratori Nazionali del Gran Sasso (LNGS), is a dark matter experiment using a dual-phase time projection chamber with 8.5 tonnes of xenon. Solar neutrinos, dominated by the proton-proton (pp) neutrinos, can scatter elastically with electrons and produce electronic recoils (ER) detectable to XENONnT down to the keV scale. The ER background in XENONnT has...
The two-neutrino double-beta decay (2ฮฝฮฒฮฒ) of $^{130}$Te offers a unique window into its underlying nuclear structure and provides essential benchmarks for neutrinoless double-beta decay (0ฮฝฮฒฮฒ) searches. We present the most precise measurement to date of the 2ฮฝฮฒฮฒ half-life of $^{130}$Te from the CUORE experiment. The half-life, based on 1038 kgยทyr TeO$_2$ exposure, is determined to be...
The DEAP-3600 dark matter detector, located 2 km underground at SNOLAB, has 3.3 tonnes of liquid argon (LAr) and initially began data collection in 2016. Due to its ultra-low backgrounds and large exposure, the DEAP-3600 detector is sensitive to charged-current interactions from $^8$B solar neutrino absorbing on $^{40}$Ar. While this reaction has never been measured before, it offers large LAr...
Large xenon time projection chambers (TPCs) have become important tools in underground physics. Next-generation PandaX-xT and XLZD TPCs will contain 4-7 tons of Xe-136 in their active volumes. We propose a combined analysis of neutrinoless double beta decay (0ฮฝฮฒฮฒ) to the ground state and excited states (0ฮฝฮฒฮฒ-ES) of the daughter nucleus to enhance the search sensitivity. The improved signal...
Some models in supersymmetric grand unified theories (SUSY GUTs) predict baryon number violating neutron decay into an antineutrino and a neutral kaon ($n \rightarrow \bar{\nu} K^0$). In this presentation, we report on a search for this neutron decay mode using 0.401 megatonยทyears of data collected by the Super-Kamiokande detector, which corresponds to 4.4 times the exposure of the previous...
T2K is a long-baseline neutrino oscillation experiment, measuring the oscillation of neutrinos and antineutrinos produced at J-PARC facility which then travel 295 km across Japan to its far detector, SuperKamiokande. T2K has been taking data since 2009 and sets world-leading constraints on many neutrino oscillation parameters within the standard PMNS three-flavour mixing paradigm, including...
Abstract: The search for neutrinoless double beta decay is a very high priority for the astroparticle physics community. In this note I will argue that the focus of new facilities for this search should be aimed at reaching the bottom of the normal hierarchy band. I will focus on ways in which current liquid xenon experiments might achieve the required energy and spatial resolutions to achieve...
JUNO (Jiangmen Underground Neutrino Observatory) is a neutrino experiment under construction in China. It will be the largest liquid scintillator experiment, detecting neutrinos and anti-neutrinos by using 20 kton of organic liquid scintillator contained in an huge acrylic vessel of 35 m diameter. The experiment will start data taking the data-taking in 2025 with the main goal to determine the...
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...
The Jinping Neutrino Experiment (JNE), situated in the world's deepest underground laboratory, the China Jinping Underground Laboratory (CJPL), conducts research on solar neutrinos, geo-neutrinos, supernova neutrinos, and neutrinoless double beta decay. The Jinping Neutrino one-ton prototype, located in CJPL-I, has completed measurements of cosmic rays and background. Next, JNE plans to build...
CUPID is a next-generation bolometric experiment to search for neutrinoless double-beta decay ($0\nu\beta\beta$) of $^{100}$Mo using Li$_2$MoO$_4$ scintillating crystals. It will operate at $\sim$10 mK in the existing CUORE cryostat at the Laboratori Nazionali del Gran Sasso in Italy. Each crystal will be facing two Ge-based bolometric light detectors for $\alpha$ rejection. In this work, we...
Thanks to recent observations of low-lying isomeric states in the nuclear structure of $^{136}$Cs, charged-current interactions in liquid xenon (LXe) time projection chambers (TPCs) of the form $\nu_e + ^{136}$Xe are expected to cause a time-delayed coincident signal in the scintillation channel which can be used to for background rejection on the order of $10^{-9}$ which is more than...
The No neutrino Double-beta-decay Experiment (NvDEx) is designed to search for the neutrinoless double-beta decay using a high-pressure 82SeF6 gas time projection chamber (TPC) and read out by low-noise CMOS sensor chips. Combining the advantages of the high Q value of 82Se and TPC's ability to distinguish double beta decay signal and background using event topology, NvDEx is expected to...
The CYGNO project aims to develop a gaseous high-precision Time Projection Chamber with an optical readout for directional Dark Matter searches and solar neutrino spectroscopy. CYGNO incorporates innovative features, such as the utilization of a He-CF4 scintillating gas mixture, and an optical readout made by PMTs and scientific CMOS (sCMOS) cameras.
Directional Dark Matter (DM) detectors, as...
Neutrinoless double beta (0ฮฝฮฒฮฒ) decay offers a means to explore whether neutrinos are massive Majorana fermions, i.e., their own antiparticles, and thus a portal between matter and antimatter. The EXO-200 experiment operated between 2011 and 2018 at the WIPP underground site in New Mexico, USA, setting some of the strongest constraints on the existence of this decay in 136Xe. EXO-200 was a...
The search for the neutrinoless double beta decay has particular meanings for answering the essential question about Majorana property of neutrinos. CUPID collaboration chose the crystal of Lithium molybdate with enriched 100Mo as the source and target to explore this important decay. The high Q value of 100Mo and the scintillation property of this crystal enable CUPID to reach a superior low...
So far, the Gallium Anomaly has been observed only in Ga detectors, which makes it impossible to distinguish between systematic errors due to the detection method (e.g. as an overestimation of the neutrino absorption cross section) and other causes, such as errors in the estimation of the source activity or sterile neutrino.
I will discuss how to test this anomaly using a different...
We present the first analysis of the quantification of imaginarity in neutrino flavor and spin-flavor oscillations by framing neutrino systems as coherent quantum superpositions within the emerging resource theory of imaginarity. Employing measures such as the โ1-norm and the relative entropy of imaginarity, we show that imaginarity is nonzero in two-flavor neutrino mixing and peaks when...
Searches for neutrinoless double-beta decay (0ฮฝฮฒฮฒ) represent one of the most promising avenues for uncovering new frontiers in particle physics, particularly in understanding the true nature of the neutrino.
The Neutrino Experiment with a Xenon TPC (NEXT) investigates neutrinoless double-beta decay (0ฮฝฮฒฮฒ) in $^{136}$Xe using high-pressure Xenon time projection chambers. The key technologies...
The talk will cover results of the CONUS+ experiment which led to the first observation of Coherent Elastic neutrino-nucleus Scattering (CEvNS) with reactor antineutrinos. The current status, a near term outlook, the physics implications and perspectives will also be discussed.
Core-collapse supernovae are among the most energetic processes in our Universe and play a crucial role for the chemical composition of the Universe. Neutrinos, produced in vast numbers during the collapse, offer a direct probe into the hydrodynamics and energy transport processes within a supernova. Fast-time variations in the neutrino luminosity and mean energy could carry information about...
The $\nu$GeN experiment is aimed at studying rare processes from antineutrino scattering on germanium. It is located in the close vicinity of the reactor core of the Kalinin Nuclear Power Plant (KNPP) at Udomlya, Russia. The experimental setup is installed under reactor unit #3 of KNPP on the moving platform, which allows changing the distance from the center of the 3.1 GW$_{th}$ core from...
Geoneutrinos are electron antineutrinos produced by beta decays of radioactive isotopes within Earth. Their detection provides a unique opportunity to quantify the production of radiogenic heat and its distribution in the planet. Despite their significance, geoneutrinos are challenging to detect due to their weak interactions with matter, which necessitates highly sensitive and specialized...
The diffuse supernova neutrino background (DSNB), formed by neutrinos released from stellar core collapse over the cosmic history and floating in the Universe, is believed a key probe for stellar astrophysics as well as cosmic chemical evolution picture. Its experimental confirmation is still awaited, yet a recent search at the Super-Kamiokande water Cherenkov detector reports an exclusion of...
Nuclear reactors are source of intense low energy neutrinos providing a great tool to look for neutrino-nucleus elastic scattering in the fully coherent regime. Taiwan EXperiment On NeutrinO (TEXONO) is few decades old research program [1] at Kuo-Sheng nuclear power plant working with state-of-art high purity point-contact Germanium detectors with O(100 eV) threshold [2]. In this work we will...
The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) uses the silicon (Si) in thick fully depleted charge-coupled devices (CCDs) as target to search for the coherent elastic scattering of reactor antineutrinos off nuclei (CEvNS) and search for new physics. Located at 30 m from the core of the Angra 2 nuclear reactor in Rio de Janeiro, Brazil, CONNIE has run on the site since 2016...
Surprisingly, the Sun is found that be a bright gamma-ray source at TeV, due to cosmic rays interacting with the solar atmopshere and produces hadronic gamma rays. I will discuss the detection of TeV solar gamma rays by HAWC, which could be a novel probe for solar magnetism, and its implications for detecting TeV neutrinos and dark matter searches from the Sun.
The NUCLEUS experiment aims to perform precision measurements of coherent elastic neutrino-nucleus scattering (CEvNS) of reactor antineutrinos in the fully coherent regime. In the first phase, CaWO$_4$ cryogenic detectors will be used as targets and the experimental apparatus will be installed at the Chooz nuclear power plant in France, in the vicinity of two 4.5 GW$_{th}$ reactor cores. The...
DANSS detects antineutrinos from a 3.1 GW$_{th}$ power reactor of Kalininskaya NPP for almost 9 years. The data sample is about 10 million events and features excellent signal to background ratio in excess of 50. Along with the leading results in the sterile neutrino searches, DANSS demonstrates various opportunities of antineutrino application for practical purposes of reactor monitoring. The...
The RED-100 is a two-phase noble gas emission detector built for observation of coherent elastic neutrino-nucleus scatteing (CEvNS) in reactor antineutrino interactions with matter. The first data taking run with LXe target was carried out at the Kalinin nuclear power plant in 2022, and the final results are given and discussed. The RED-100 experiment is currently in preparation for Phase II...
AMoRE-II aims to search for neutrinoless double-beta decay of $^{100}$Mo using cryogenic detectors based on an array of Li$_2^{100}$MoO$_4$ crystals. The first stage of the experiment will employ 90 LMO crystals (27 kg of $^{100}$Mo) in 2025, expanding to 360 crystals (155 kg $^{100}$Mo) for full-scale data taking in 2027. To achieve a target sensitivity of T$_{1/2}^{0\nu\beta\beta}$ >...
The Ricochet experiment aims at measuring the coherent elastic neutrino-nucleus scattering (CEฮฝNS) of reactor antineutrinos at the Institut Laue-Langevin, ILL (Grenoble, France). Ricochet employs two detector technologies to measure the CEฮฝNS: (1) germanium cryogenic calorimeters with neutron-transmutation-doped thermistors (called CryoCube); (2) cryogenic calorimeters with a superconducting...
The goal of OPOSSUM is to discriminate for the very first time Single Site Events (SSE) from Multi Site Events (MSE) in mK calorimeters for rare events searches. The OPOSSUM project, funded by the European Research Council trough a Starting Grant in 2024, embarks on a transformative journey to push an order of magnitude forward the sensitivity of Neutrinoless double-beta decay (0ฮฝฮฒฮฒ)...
Double electron capture (ECEC) is a second-order weak interaction
process in which two orbital electrons are captured simultaneously by a
nucleus. Its half-life serves as a sensitive probe for testing nuclear
structure models. To date, only ECEC in xenon-124 has been observed,
indicating the need for new experimental techniques. In this
presentation, we report a search for double electron...
The CICENNS (CsI detector for Coherent Elastic Neutrino Nucleus Scattering) experiment aims to construct a CsI(Na) detector array with total mass of 300 kg, located at the China Spallation Neutron Source, for the precise measurement of coherent elastic neutrino-nucleus scattering. In this talk, I will present the plan, status, and physics goals of CICENNS.
This presentation will detail the latest advancements in the development and characterization of a 6.6 kg proto-type CryoCsI detector, comprising two 3.3 kg cesium iodide (CsI) crystals operated at around 90K. Key performance metrics of the detector, including light yield optimization, spatial uniformity of signal response, and long-term stability under sustained cryogenic conditions, will be...
The novel molybdate crystals, Li2MoO4 (LMO) and Na2Mo2O7 (NMO), are popular used as absorbers in cryogenic phonon scintillating bolometers for 100Mo neutrinoless double beta decay search. The low temperature properties of LMO and NMO, including scintillation characteristics and specific heat, have been investigated experimentally. The excitation spectrum and light yield are measured ranging...
The RECODE (Reactor neutrino COherent scanning Detection Experiment) uses two sets of high-purity germanium arrays to accurately measure the CEvNS process of reactor neutrinos. The high-purity germanium technology used comes from the PPC germanium detector technology developed by CDEX in dark matter experiments. The currently confirmed experimental site is located at Sanmen Nuclear Power Plant...
Cryogenic detectors are promising instruments for investigating neutrinoless double beta decay. The CROSS project (Cryogenic Rare-event Observatory with Surface Sensitivity) aims to advance bolometric techniques using $^{100}$Mo and $^{130}$Te. The final detector, ready for commissioning at the underground Canfranc Laboratory in Spain, consists of 36 LiโMoOโ and 6 TeOโ crystals, most of which...
Worldwide efforts are underway to detect neutrinoless double beta ($0\nu\beta\beta$) decay using experiments based on various technologies and target isotopes. Future experiments in this regard aim to exclude the inverted order (IO) condition or explore the normal order (NO) band. Consequently, comparing the sensitivities of proposed $0\nu\beta\beta$ decay experiments with promising prospects...
The measurement of the Coherent Elastic Neutrino-Nucleus Scattering (CE$\nu$NS) offers a unique probe of the properties of neutrinos and new physics beyond the Standard Model.
However, large amount of background from cosmic rays and environmental radiations in the low-energy region makes the detection of CE$\nu$NS signals from reactor neutrino challenging.
The Liquid Xenon Time Projection...
The Neutrino Elastic-Scattering Observation with NaI(Tl) (NEON) experiment is primarily designed to detect coherent elastic neutrino-nucleus scattering (CEฮฝNS). Situated in the tendon gallery of the Hanbit Nuclear Power Plant in Yeonggwang, South Korea, the NEON experiment utilizes reactor neutrinos as a source for the neutrino interaction. Since its successful initiation in 2022, the...
Coherent Elastic Neutrino-Nucleus Scattering (CE$\nu$NS) is a tree-level neutral-current process described within the Standard Model (SM). CE$\nu$NS serves as a crucial channel for testing the SM of electroweak theory and exploring potential new physics at low energies. Since its first detection[1], significant efforts, including the TEXONO experiment, have focused on detecting and improving...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation neutrino oscillation long-baseline experiment designed to measure the neutrino mass ordering, the CP-violating phase in the lepton sector of the Standard Model and to improve the precision on key parameters that govern neutrino oscillations. The System for on-Axis Neutrino Detection (SAND) at the DUNE Near Detector complex is...
The ECHo experiment measures the energy spectrum of the Electron Capture decay in Holmium-163 to determine the effective mass of the electron neutrino. Arrays of metallic magnetic calorimeters enclosing the $^{163}\textrm{Ho}$, operated at temperatures around $20 \textrm{mK}$, are used for the high energy resolution measurement of the spectrum. In the first phase of the experiment, ECHo-1k, a...
The Ptolemy experiment is designed to detect the cosmic neutrino background, believed to have formed roughly one second after the Big Bang, as predicted by the Standard Cosmological Model. Given the extremely low energy of these neutrinos, their detection is feasible through neutrino capture on beta-unstable isotopes, which do not require an energy threshold. Tritium embedded in a carbon-based...
The Short-Baseline Near Detector (SBND) is a Liquid Argon Time Projection Chamber (LArTPC) neutrino detector located 110 meters downstream of the target in the Booster Neutrino Beam (BNB) at Fermilab. SBND is characterized by superb imaging capabilities thanks to its low-noise cold electronics and an advanced photon detection system. Because of its proximity to the target, SBND will record...
The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose 20-kiloton liquid scintillator detector set to begin data-taking this year. The experiment aims to have world-leading sensitivity to the neutrino mass ordering and make sub-percent precision measurements of oscillation parameters ฮm_31^2, ฮm_21^2, sin^2โก(ฮธ_12). These goals hinge on precisely resolving the fine oscillation...
The determination of the absolute neutrino mass scale remains a fundamental open question in particle physics, with profound implications for both the Standard Model and cosmology. The only model-independent method for measuring the neutrino mass relies on the kinematic analysis of beta decay or electron capture (EC) decay, assuming only momentum and energy conservation. Embedding the...
Taishan Antineutrino Observatory (TAO) is a satellite experiment of JUNO. It consists of a ton-level liquid scintillator detector at around 44 meters from a reactor core of the Taishan Nuclear Power Plant. It detects reactor antineutrinos by inverse beta decay (IBD). Silicon photomultipliers which have ~95% coverage and ~50% photon detection efficiency are used to collect photoelectrons,...
Currently, the best limits on the neutrino mass from the direct measurements are obtained by the KATRIN (KArlsruhe TRItium Neutrino) experiment, giving an upper limit on the mass of electron anti-neutrino of 0.45 eV (KATRIN Collaboration, Science 388, 180 (2025)). Towards the end of this year, KATRIN will reach its desired goal of 1000 days of measurement, allowing the electron anti-neutrino...
The Jiangmen Underground Neutrino Observatory (JUNO), located in southern China, is the worldโs largest underground liquid scintillator-based neutrino experiment. It aims to study neutrinos from various sources, including reactors, the atmosphere, the Sun, the Earth, and supernovae. The central detector comprises a 20-kton liquid scintillator volume, equipped with over 17,000 20-inch and more...
We calculate the decay rate of a massive neutrino to a lighter one and a massless Nambu-Goldstone boson $\nu_i \to \nu_j + \phi$ in the general case, where the individual helicities of parent and daughter neutrinos are specified. Such invisible decays of cosmological relic neutrinos are studied and the impact on the capture rates in the PTOLEMY-like experiments is analyzed. We find that the...
Ultra-high-energy cosmic rays (UHECR) scattering off the cosmic relic neutrino background have recently gained renewed interest in the literature. Current data suggest that UHECR are predominantly made of heavy nuclei. Since the energy of relic neutrinos can reach โผO(10) MeV in the rest frame of the UHECR, the cross section of heavy nuclei scattering off relic neutrinos can be coherently...
The Giant Radio Array for Neutrino Detection (GRAND) is a large-scale project designed to detect ultra-high-energy (UHE) neutrinos at EeV energies using arrays of self-triggered radio antennas. By capturing radio emissions of air showers initiated by tau decays from neutrinos, GRAND aims to achieve unprecedented sensitivity and sub-degree angular resolution to those UHE neutrinos, marking a...
Baikal-GVD is a large underwater neutrino detector currently under construction in Lake Baikal, Russia. With an instrumented volume already approaching 0.6 km$^3$ and a sub-degree angular resolution, Baikal-GVD is starting to provide meaningful constraints on high energy neutrino sources. We review the current status of Baikal-GVD and recent results obtained with the partially completed...
The KATRIN experiment is designed to measure the neutrino mass $m_{ฮฒ}$ by analysing the endpoint region of the tritium ฮฒ spectrum. KATRIN has set the world best limit of $m_{ฮฒ}$ < 0.45 eV (90% C.L.) from the combined analysis of the first five measurement campaigns.
Using the same data sets, KATRIN has recently published new results in the search for sterile neutrinos at the eV scale,...
The Karlsruhe Tritium Neutrino (KATRIN) experiment is designed to measure the effective electron antineutrino mass with a sensitivity better than $m_\nu c^2=0.3\,\text{eV}$ (90% C.L.) in a kinematic approach by applying precision electron spectroscopy to the beta decay of molecular tritium. The measurement focuses on the spectral endpoint ($E_0$) region, extending up to tens of $\text{eV}$...
The TRopIcal DEep-sea Neutrino Telescope (TRIDENT), a next-generation neutrino observatory initiated by Shanghai Jiao Tong University, will be deployed in the western Pacific Ocean to investigate high-energy astrophysical neutrino sources. TRIDENT will significantly enhance cosmic neutrino measurements across all flavors, offering unprecedented sensitivity for diverse physics studies. This...
The Karlsruhe Tritium Neutrino (KATRIN) experiment performs a measurement of the effective electron neutrino mass with sub-eV sensitivity through high-precision spectroscopy of the tritium $\beta$-decay spectrum. Analysing 36 million $\beta$-electrons from five measurement campaigns, KATRIN presently provides an upper limit on the neutrino mass of $m_\nu < 0.45~\text{eV}$ at 90\%...
The Radio Neutrino Observatory Greenland (RNO-G) is searching for Askaryan radio signals from ultra-high-energy neutrinos ($E \ge 100\,$PeV) interacting in ice. RNO-G utilizes a hybrid station design, which features radio antennas installed in 100$\,$m deep boreholes as well as in hand-digged trenches near the surface. At present, 8 hybrid stations are already operational and collecting...
The origin of high-energy neutrinos is still unknown, while gamma-ray bursts, the most powerful and luminous transients in the universe, remain a viable candidate. Even though IceCube observations stringently constrain the contribution from the typical long GRBs, the low-luminosity GRBS (LL GRBS) are promising candidates to be the main population of the diffuse neutrinos. In this work, we...
Understanding the nature of dark matter is one of the fundamental challenges in modern physics. Numerous experimental and theoretical attempts have explored the possibility that keV-scale sterile neutrinos could serve as a strong dark matter candidate. Although satellite observations have placed stringent limits on the mixing of sterile neutrinos with active Standard Model neutrinos, these...
DANSS is a scintillator detector of antineutrinos located on a lifting platform below the 4th reactor core of Kalininskaya NPP in Russia. The detector position below the reactor core provides advantages of high neutrino rate and moderate overburden of 50 m w.e., which suppresses atmospheric muon flux by a factor of 5โ6. The detector was commissioned in April 2016 and it has been operating...
Building on landmark detections of high-energy astrophysical neutrinos over the last decade, next-generation neutrino telescopes are poised to unlock insights into the most energetic phenomena in the Universe. TRIDENT is a developing neutrino observatory designed to significantly extend the reach and capabilities of current high-energy neutrino experiments. Located 3.5 km deep in the South...
The capability to perform precision measurements of nuclear form factors or coupling constants with CEvNS relies on precise knowledge of the incoming neutrino flux and energy spectrum. Isotopes decaying via electron capture (EC) represent a close-to-ideal neutrino source, thanks to the monoenergetic spectrum and the possibility of precisely measuring the source activity. However, the low...
