Skipper-CCDs are special CCD detectors sensitive to single electron excitations to the silicon valence band, and thus sensitive to very low nuclear recoils. This opens up the unique opportunity of detecting coherent elastic neutrino nucleus scattering at comercial nuclear reactor powerplants. To exemplify the physics potential and limitation of these experiments, we study how background rates...
MicroBooNE has accumulated data in a 1E21 POT neutrino beam over five years to test the excess of low energy electron neutrino-like events observed by MiniBooNE. To this end, we have explored the use of a new hybrid analysis chain that includes both conventional and machine learning reconstruction algorithms to identify events with the exclusive 1-proton-1-electron signal topology. The...
The IceCube Neutrino Observatory instruments a cubic kilometer of ice at the South Pole to detect atmospheric and astrophysical neutrinos. IceCube consists of a 3D array of 5160 optical modules which detect light from relativistic charged particles resulting from neutrino interactions in the ice. This can be used to reconstruct the neutrino’s energy and direction, but becomes particularly...
ARIADNE, a state-of-the-art 1-ton dual-phase LArTPC, featuring game-changing photographic readout, utilising ultra-fast photon sensitive TPX3 cameras, to image the secondary scintillation light produced in THGEM holes. ARIADNE underwent testing at the CERN T9 beamline, becoming the first dual-phase LArTPC with photographic capabilities to be positioned at a charged particle beamline,...
The NOvA neutrino experiment, designed to measure electron neutrino
appearance in a muon neutrino beam, also has a wide-reaching
astrophysics program as a result of its unique size, granularity and
position. Unlike previous long-baseline neutrino experiments, the 14kt
NOvA far detector is on the surface, which enables a search for a
low-mass monopole component of cosmic rays. Despite...
The DeepCore sub-array within the IceCube Neutrino Observatory is a densely instrumented region of Antarctic ice designed to observe atmospheric neutrino interactions above 5 GeV, via Cherenkov radiation. At these energies, Earth-crossing muon neutrinos have a high chance of oscillating away to tau neutrinos. These oscillations have been previously observed in DeepCore through both muon...
The objective of the KATRIN experiment is the measurement of the effective electron neutrino mass with an unprecedented sensitivity of 0.2 eV/c$^2$. In the ultra-precise measurement of beta-electrons from tritium-decays, a non-zero neutrino mass would be indicated by a minute deviation of the beta-spectrum close to the endpoint at 18.6keV. This is measured with a 24m long electrostatic...
The origin of the small neutrino masses and the BAU can be explained using seesaw mechanism and leptogenesis as phenomenological benchmarks. Since type II seesaw suffers from direct detectability in any foreseeable experiment, to overcome this, we constructed the inverse and linear seesaw models. The inclusion of the right handed Majorana fields can serve as extra source of CP violation in the...
The popularity of Deep Learning (DL) has grown exponentially in all scientific fields, included particle physics. The amount of data and its complexity has grown as well, and the computing power required to perform inference can nowadays hardly be managed. Central Processing Units (CPUs) are affordable but their ability to run Artificial Intelligence (AI) is very limited. In recent years,...
CUPID-Mo is a demonstrator, located in the Modane underground laboratory, for the future ton-scale double beta decay experiment CUPID. CUPID-Mo uses an array of 20 100Mo-enriched Li2100MoO4 low-temperature scintillating bolometers. The detectors exhibit extremely high energy resolution (FWHM~6 keV for 2615 keV gamma-quanta), but a precise calibration and an accurate determination of the...
Situated in the Vale Creighton mine at 2km depth, the SNO+ experiment is entering a critical time as it is now contains nearly half of its planned 780 tonnes of linear alkylbenzene. In the coming year, the experiment will begin to add the Tellurium isotope required for its planned neutrinoless double beta decay measurements. Data collected in the meantime will be used for solar and reactor...
MicroBooNE is the first phase of Fermilab's Short Baseline Neutrino (SBN) Liquid Argon Time Projection Chamber (LArTPC) programme. This poster presents the characterisation of electron neutrinos in a muon neutrino beam with the LArTPC detector technology. The Booster Neutrino Beam has an energy peaking around 1 GeV and an electron content of approximately 0.5%. The analysis investigates...
Precise modeling of neutrino interactions on nuclear targets is essential for neutrino oscillations experiments. The modeling of the energy of final state particles in quasielastic (QE) scattering and resonance production on bound nucleons requires knowledge of both the removal energy of the initial state bound nucleon as well as the Coulomb and nuclear optical potentials for final...
We present complete predictions for the interactions of energetic neutrinos with matter as they propagate through Earth towards large-volume detectors. Our results are based on state-of-the-art calculations for the high-energy neutrino-matter interaction cross-sections. In addition to the dominant interaction process, deep inelastic scattering off quarks and gluons, we include the relevant...
MicroBooNE, a Liquid Argon Time Projection Chamber with an active volume of 85 metric tons, is located on the Booster Neutrino Beam at Fermilab and has been collecting data since fall 2015. One of its primary physics goals is to investigate the low-energy excess (LEE) of events observed by the MiniBooNE experiment in their measurement of charged current quasi-elastic-like electron neutrino...
The first three flights of the ANITA experiment resulted in two enigmatic detections. These events, if interpreted as upward-going extensive air showers, are compatible with the signature of tau decay from an ultra-high-energy tau neutrino interaction. However, the arrival of these events from well below the horizon is in extreme tension with limits on isotropic cosmogenic neutrino fluxes....
Recent measurement of coherent elastic neutrino-nucleus scattering (CEvNS) process by COHERENT collaboration has opened a new portal of exploring various BSM processes. The major uncertainty in CEvNS stems from nuclear constraints on form-factors, and hence any experimentally measured deviation from the SM number of events can either be attributed to a lack of knowledge of the nucleon...
For a surface Liquid Argon Time Projection Chamber (LArTPC) to detect neutrino interactions, the rejection of the cosmic background is challenging and critical. We introduce a superior cosmic background rejection procedure applied in MicroBooNE based on the Wire-Cell 3D event reconstruction techniques. The foundational reconstruction techniques include the 3D imaging and clustering of the TPC...
We present a study of cosmic proton interactions with air in the atmosphere using COsmic Ray SImulation for KAscade (CORSIKA) code. The CORSIKA simulation uses various hadronic interactions models for the secondary particle production in the air. The secondary particles mostly pions and kaons decay to muons which finally reach the Earth. The muon energy and zenith angle distributions are then...
NOvA is a long-baseline neutrino oscillation experiment that consists of two functionally equivalent detectors and utilizes Fermilab's NuMI beam. NOvA uses a convolutional neural network for particle identification with a validation process that includes several data-driven techniques. Muon-Removed Electron-Added studies involve selecting $\nu_\mu$ charged current candidates from data and...
IceCube has measured an astrophysical flux of neutrinos extending to 10 PeV. However, a guaranteed yet undetected flux of cosmogenic neutrinos remains elusive. The cosmogenic neutrino energy density peaks at ~EeV energies. This has led to the development of novel detection technologies optimized for EeV neutrinos; among them, notably, are radio detectors. However, we show here that a similar...
PROSPECT, the Precision Reactor Oscillation and SPECTrum experiment, is a short-baseline reactor antineutrino experiment aiming to probe an eV$^2$-scale sterile neutrino oscillation, and to investigate the isotopic origin of discrepancies between measured and predicted reactor antineutrino fluxes and spectra. In PROSPECT, reactor antineutrinos are detected by an optically segmented...
We present a quantitative comparison of constraints on sterile neutrinos from neutrino oscillation experiments and from Planck data. We find that the cosmological data fully exclude the allowed regions from the LSND, MiniBooNE and Neutrino-4 collaborations, and those from the gallium and rector anomalies, at the 95% CL. Compared to the exclusion region from the Daya Bay $\nu_{e}$-disappearance...
Precision measurements of neutrino oscillation parameters with DUNE require estimates of uncertainties in the neutrino flux. These uncertainties fall into two general categories: those associated with hadron production, and others categorized as so-called focusing effects. The focusing of the LBNF $\nu$-beam is affected by various uncertainties in the position and composition of the beamline...
The JSNS2 experiment aims to search for the existence of sterile neutrino at J-PARC. A 1 MW beam of 3 GeV protons incident on a spallation neutron target produces an intense neutrino beam from muon decay at rest. The experiment will search for muon anti-neutrino to electron anti-neutrino oscillations which are detected by the inverse beta decay interaction, followed by gammas from neutron...
We explore the role of matter effect in the evolution of neutrino oscillation parameters in the presence of all possible lepton-flavour-conserving and lepton-flavour-violating non-standard interactions (NSIs) of the neutrino. We derive simple approximate analytical expressions for the mass-mixing parameters in matter in presence of NSIs. We observe that only the NSIs in 2-3...
Neutrinos can propagate very long distances without any deviation as they undergo only through weak interactions. This characteristic property can thus provide an ideal platform to investigate Planck suppressed physics, such as CPT violation, through their long distance propagation. CPT violation can be studied through Lorentz invariance violation (LIV) in the long-baseline neutrino...
The Project 8 collaboration aims for a direct measurement of the absolute neutrino mass scale from the distortion of the tritium beta decay spectrum near the endpoint. To this end, the collaboration has successfully established CRES, a frequency-based approach to detect electrons and determine their kinetic energy. In this contribution we present the first tritium spectrum recorded using the...
This work proposes deep underwater neutrino detection with a solid-state detector: KaiKai. Planned as a portable instrument operable in the depths, it is expected to measure geoneutrinos from the mantle up to 83% of the signal. The location of currents and futures detectors in SNEWS indicates the Pacific Ocean as an optimal location for supernova triangulation, with a maximum at $\sim$500km...
We studied a neutrino decay scenario as a potential solution to conciliate the tension between appearance and disappearance data at the short-baseline experiments. Particularly, we considered a heavy neutrino mass-eigenstate that decays into a usual light neutrino plus a massless scalar. Under this neutrino decay hypothesis, we fitted LSND and MiniBooNE electron neutrino appearance data...
Experimental searches for light dark sectors can help shine light on the origin of neutrino masses. In this poster I present one possibility of a dark sector that realizes the inverse seesaw at the MeV scale, and offers new experimental signatures to be searched for. The model, in fact, can accommodate several experimental anomalies, such as the MiniBooNE low energy excess. We are interested...
Identifying Cherenkov photons produced when charged particles interact with scintillators provides additional information about the interaction, including directionality and particle identification, while maintaining the excellent energy and position resolution typical of scintillators. Dichroicons achieve this with a Winston cone made from dichroic filters, which reflects photons inconsistent...
We analyze the effect of the Dark-large mixing angle (DLMA)
solution on the effective Majorana mass ($m_{\beta\beta}$) governing neutrino-less double beta decay ($0\nu\beta\beta$) in the presence of a sterile neutrino.
We consider the 3+1 picture, comprising of one additional sterile neutrino.
We have checked that the MSW resonance in the sun can take place in the DLMA parameter space in...
Neutrino fluxes arising from WIMP annihilation in the center of the sun($\odot$), earth($\oplus$) and galaxy can leave detectable signatures at the proposed 50-kt Iron Calorimeter (ICAL)
detector at the upcoming India-Based Neutrino Observatory (INO). Although the atmospheric neutrinos will pose a
serious background to such signal neutrinos, exploiting the excellent angular resolution of...
The neutrino mass ordering (NMO) is one of the fundamental questions in neutrino physics. This can be unraveled by next-generation neutrino detectors such as JUNO and KM3NeT-ORCA. JUNO is a medium-baseline (53 km) reactor experiment which could be sensitive to the NMO by investigating the interference effects between fast oscillations in oscillated electron-antineutrino spectrum. KM3NeT-ORCA...
The Double Chooz experiment has obtained its most precise measurement of the neutrino mixing angle $\theta_{13}$, exploiting for the first time its FD and ND configuration. The improvement of this value falls on the increase of statistics as well as the major reduction of reactor and detection systematics thanks to the iso-flux configuration and a novel detection technique, called Total...
The NEXT Collaboration has been operating the NEXT-White detector at the Laboratorio Subterráneo de Canfranc (LSC, Spain) since 2016, and specifically with 136Xe-enriched gas since 2019. NEXT-White is a large-scale demonstrator for 136Xe neutrinoless double beta decay searches in a high-pressure xenon gas time projection chamber. The poster will present the latest NEXT-White results...
High-energy cosmic neutrinos present a unique opportunity to search for physics beyond Standard Model thanks to their reach to the highest energies and longest baseline. Beyond Standard Model induced interactions of high-energy neutrinos during their propagation yield distinct signatures in their observables in neutrino telescopes. New physics scenarios will induce a time delay in observation...
NOvA is a long-baseline neutrino experiment primarily studying neutrino oscillations in the NuMI beam from Fermi National Laboratory, USA. It consists of two functionally identical, finely granulated detectors which are separated by 809 km and situated 14.6 mrad off the NuMI beam axis. By measuring the transition probabilities P($\nu_\mu \rightarrow \nu_e$) and P($\nu_\mu \rightarrow...
IceCube has presented evidence for a time-dependent flux of TeV neutrinos from the blazar TXS 0506+056. Additional events may be observable by IceCube at lower energies, although the existing analysis rapidly loses sensitivity below about 1 TeV. The densely instrumented DeepCore sub-array improves the threshold for observation from 1 TeV down to approximately 10 GeV, giving a unique window to...
MADMAX (the MAgnetized Disk And Mirror Axion eXperiment) is a novel approach to search for Axion Dark Matter in the mass range 40-400 $\mu$eV/c$^2$. It utilizes the principle of the dielectric haloscope, a system composed of several parallel dielectric disks, a mirror, and a receiver. This so-called booster system is placed within a magnetic field and a cryogenic environment. We investigate...
The Project 8 collaboration developed the Cyclotron Radiation Emission Spectroscopy (CRES) technique, aiming to directly measure the absolute neutrino mass with the tritium beta-decay electron energy spectrum endpoint method. Given the convenience of its K-conversion line at 17.8 keV near the tritium endpoint at 18.6 keV, we use $^{83m}$Kr as an electron source for magnetic field calibration...
The MicroBooNE experiment is an 85 ton active volume liquid-argon time projection chamber
located at the Fermilab Booster Neutrino Beamline. MicroBooNE’s ability to detect low-energy
protons allows us to study single-proton events with a four-momentum transfer squared $Q^2$ as
low as 0.10 $GeV^2$. We present an analysis with a signal of one proton and no other particles (NC1p)
in the final...
MicroBooNE is a Liquid Argon Time Projection Chamber (LArTPC) detector designed to address the excess of low energy electromagnetic events observed by the MiniBooNE experiment. Electron neutrinos can create a wide variety of topologies when interacting in liquid argon, and this analysis measures events both with (1eNp0π) and without (1e0p0π) visible protons. This poster presents the...
Neutrino cross-sections are a key ingredient to a variety of present and future analyses and experiments. Measuring those cross-sections is an active and on-going source of investigation, largely restricted to accelerator studies below a few 100 GeV. However, with the increasing precision of atmospheric neutrino flux measurements and modelling, an opportunity exists to provide enhancements...
MicroBooNE is a near surface Liquid Argon Time Projection Chamber neutrino experiment along the Booster Neutrino Beam at Fermilab. Low electronics noise levels and millimeter spatial resolution allow this detector to be sensitive to MeV-scale interactions. Near surface location of the detector makes it challenging to distinguish low energy nuclear de-excitation photons and neutron scatters...
Charge-Parity-Time (CPT) symmetry governs that the oscillation parameters for neutrinos and anti-neutrinos are to be identical. Different mass and mixing parameters for these particles may give us a possible hint for CPT violation in the neutrino sector. Using this approach, we discuss the ability of long-baseline and atmospheric neutrino experiments to determine the difference between mass...
The GERDA experiment is searching for neutrinoless double-beta ($0\nu\beta\beta$) decay of the germanium isotope $^{76}$Ge. Isotopically enriched germanium diode detectors are operated submersed and in direct contact with liquid argon (LAr). Passive and active background suppression techniques such as shielding, pulse shape discrimination and vetoing are adopted to lower the rate of events...
In high purity germanium detectors, the signal evolution carries informations on the topology of the energy deposition. This feature is exploited in the search for neutrinoless double-beta decay of $^{76}$Ge to discriminate between single- (typical of sought-after signal) and multiple-energy depositions (typical of background events), in the GERDA, MJD and LEGEND experiments. In the effort to...
With 20-kiloton liquid scintillator as detection medium, the Jiangmen Underground Neutrino Observatory (JUNO) will have highly competitive sensitivity to MeV-scale neutrino, and will play an important role in the emerging field of multi-messenger astronomy, especially for the transient events where high radioactivity background can be easily bypassed. We will present a multi-messenger trigger...
In addition to providing constraints for measurements of neutrino oscillations, the T2K off-axis near detector ND280 also measures a variety of neutrino interaction rates, in various exclusive channels.
I will present the status of an updated measurement of the muon neutrino charged current cross section with one positively charged pion in the final state ($\nu_\mu CC1\pi^+$) in ND280. The...
NEON aims an observation of a coherent elastic neutrino-nucleus scattering (CEvNS) using reactor anti-electron neutrino with NaI(Tl) crystal detectors at Hanbit nuclear power plant in Yeonggwang, South Korea. Even though CEvNS was observed by COHERENT collaboration in 2017 with the spallation neutron source, the same process with the reactor neutrino has not yet been observed. The NEON pilot...
The effect of neutrino quantum decoherence has attracted a growing interest during the last 15 years. Most existing studies deal with searches of the neutrino quantum decoherence in terrestrial reactor and solar neutrino experiments. New large volume neutrino detectors will provide a new frontier in high-statistics measurements of neutrino fluxes from supernovae. It is thus important for...
If a neutrino detector can be operated in space it would facilitate at least three future missions for new science. Close to the Sun the neutrino flux can increase more than 10,000 times that on Earth and by going away from the Sun the solar neutrino backgrounds for Dark Matter searches reduced. The Sun could be used as a gravitational focus of neutrino sources detectable with either a...
NOvA is a long-baseline accelerator-based neutrino oscillation experiment that uses the NuMI beam from Fermilab to measure electron-neutrino appearance and muon-neutrino disappearance using a Near Detector, located at Fermilab, and a Far Detector, located in Ash River, Minnesota. The high flux of muon neutrinos at the Near Detector allows for measurement of rare processes such as neutrino...
We discuss the connection between the origin of neutrino masses and the properties of dark matter candidates in the context of gauge extensions of the Standard Model. We investigate minimal gauge theories for neutrino masses where the neutrinos are predicted to be Dirac or Majorana fermions. We find that the upper bound on the effective number of relativistic species provides the strongest...
The COHERENT collaboration seeks to measure neutrino interaction cross sections using the high-intensity, pulsed neutrino flux provided by the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). In addition to ongoing CEvNS measurements, the collaboration deploys a set of detectors dedicated to the observation of neutrons produced via neutrino interactions in iron and...
The eHWC J1825-134 gamma-ray source is located in the southern sky and has been recently detected by the HAWC observatory. Amongst the HAWC sources, it is the most luminous in the multi-TeV domain. We show the prospects to detect this source at the forthcoming KM3NeT detector and comment on the possibilities of detection with other neutrino telescopes.
DUNE is one of the most promising future neutrino oscillation
experiments and it is expected to be very sensitive to new physics in neutrino oscillations.
In our analysis we showed that the $\nu_\mu \to \nu_\tau$ appearance channel with the subsequent decay $\tau \to e$ can improve significantly the DUNE sensitivity to the propagation Non Standard Interactions (NSI) parameter...
The origin of neutrino masses heralds new physics. In some theories beyond the standard model, existence of sterile neutrinos have been predicted. In this paper, we ask the question: what if sterile neutrinos cause the space-time geometry to be warped in a way that it leads to repulsive gravity? We use a Lambda-CDM model along with a negative gravitational constant for the sterile neutrinos to...
We present the proton and neutron vector form factors in a convenient parametric form that is model independent and optimized for momentum transfers $\leq$ few GeV$^2$. The form factors are determined from a global fit to electron scattering data and precise charge radii measurements. We apply a new treatment of radiative corrections. We evaluate the neutrino–nucleon scattering cross sections...
In this poster, we present a fast and scalable deep learning algorithm for particle clustering in liquid argon time projection chamber (LArTPC) data, as part of the machine learning based reconstruction effort at SLAC. Particle clustering refers to the task of grouping image pixels into particle instances, which is regarded as one of the most challenging tasks in LArTPC data reconstruction....
I will propose a model for both quraks and leptons based on the $SU(5)$ grand unification and $\mathcal{T}_{13}$, a discrete subgroup of $SU(3)$, family symmetry. It naturally reproduces GUT-scale mass ratios of quarks and charged leptons and their mixing angles, assuming tribimaximal (TBM) seesaw mixing. It predicts normal ordering for light neutrino masses with $m_{\nu_1} = 27.6$, $m_{\nu_2}...
DUNE is an upcoming long-baseline neutrino-oscillation experiment, with one primary goal being the discovery of leptonic violation of the charge–parity symmetry. The far detector will be composed of four liquid-argon time-projection chambers, including two that will operate in a single argon phase. Anode plane assemblies are critical components in these single-phase detectors as they are...
PROSPECT, the Precision Reactor Oscillation and SPECTrum experiment, is a reactor antineutrino experiment consisting of a segmented liquid scintillator antineutrino detector designed to probe short-baseline neutrino oscillations and precisely measure the antineutrino spectrum of the primary fission isotope U-235. PROSPECT’s neutrino oscillation analysis utilizes target segmentation to look for...
The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment designed to determine neutrino mass hierarchy, measure oscillation parameters and investigate solar neutrinos, supernova neutrinos and geoneutrinos, etc. The JUNO central detector (CD) contains 20 ktons of liquid scintillator with an acrylic sphere (35.4m inner diameter). Our baseline requirement of...
The Double Chooz (DC) experiment is a reactor antineutrino experiment designed to measure the θ13 mixing angle. The experiment is located at Chooz-B nuclear power plant and consists of two IBD detectors respectively located ~400m and ~1050m to the two 4.25 GW pressurized water reactors constituting the plant. In 2018, DC reported its latest analysis of θ13 with both detectors taking data...
Dark matter particles in the galactic halo can scatter off particles in celestial bodies such as stars or planets, lose energy and become gravitationally trapped. In this process, an accumulation of dark matter in the center of celestial bodies is expected, for example, at the center of the Earth. If dark matter self-annihilates into Standard Model particles, the end products of these...
A.V. Derbin for the Borexino collaboration
The results of a low-energy neutrino search using the Borexino detector in coincidence with gamma-ray bursts (GRB), solar flares (SF) and gravitational wave (GW) events are presented. The correlated events with energies greater than 0.25 (1.0) MeV were looked for within a various time windows centered around the GRB, SF or GW detection time. As a...
The Short Baseline Neutrino (SBN) program comprises three detectors —
the Short Baseline Near Detector (SBND), MicroBooNE, and ICARUS — and
promises sensitivity to a variety of new physics models proposed
to explain the perplexing short-baseline neutrino anomalies. This poster will
describe ongoing developments to assess the SBN sensitivity to new physics
using the SBNfit fitting...
The KM3NeT is a next generation neutrino telescope under construction in the Mediterranean sea. The primary goal of the low energy configuration, ORCA, is to measure oscillation parameters with atmospheric neutrinos, in particular the Neutrino Mass Ordering (NMO). In addition to this primary goal, ORCA will also be capable of constraining a number of non-standard physics scenarios such as...
We introduce the scientific opportunity that research reactors and nuclear power plants in Argentina represent for short baseline reactor neutrino experiments. Argentina has different kinds of nuclear reactors that can be accessible to perform a variety of experiments in diverse fields. There are research reactors aimed to function as radioisotopes generators, training facilities, R&D in...
LEGEND (Large Enriched Germanium Experiment for Neutrino-less Double-Beta Decay) is a ton-scale 76Ge-based neutrinoless double beta decay experimental program with discovery potential at a half-life greater than $10^{28}$ years.
The first 200-kg phase (LEGEND-200) is currently under construction and will start data taking in 2021. A key to achieve the projected half-life sensitivity of...
This work represents an extension of the [MK model][1]. The MK model provides a full kinematic description of single pion production in the neutrino-nucleon interactions, including resonant and nonresonant interactions in the helicity basis, in order to study the interference effect. The resonant interactions of MK model are described by RS model. In the new approach, we use Rarita-Swinger...
Addressing the origin of the observed diffuse astrophysical neutrino flux is of paramount importance. In this context, Gamma-Ray Bursts (GRBs) are considered interesting candidate sources since they are potentially able to achieve the energetics required to reproduce the neutrino flux.
Using ANTARES data with the aim of constraining the contribution from the GRB population to the high-energy...
The Jiangmen Underground Neutrino Observatory (JUNO) is a multi-purpose neutrino experiment which is under construction. The primary goal of JUNO is to determine the neutrino mass ordering and precisely measure the oscillation parameters by reactor anti-neutrinos. There will be about 20000 20-inch PMTs equipped for JUNO, which include 15000 MCP-PMTs and 5000 dynode-PMTs. To achieve the...
Neutrino induced pion production in the resonance (RES) region is one of the most important interaction modes for the current and future generation long-baseline neutrino oscillation experiments. It is also sensitive to nuclear effects, including fermi motion, initial state nucleon correlations, and final state interactions etc., which affect event topology and energy reconstruction of RES...
Neutrinos travel nearly unattenuated over cosmological distances making them an excellent messenger to study high-energy processes occurring in the universe. IceCube, the world's largest and most sensitive astrophysical neutrino detector, reported a high-energy neutrino event on 22 September 2017 which was found to be coincident with a flaring blazar, TXS 0506+056. This first multi-messenger...
JUNO is multi-purpose neutrino experiment with 20 kton liquid scintillator detector under construction in China.The main aim of the experiment is to determine neutrino mass hierarchy by measuring the energy spectrum of reactor $\bar{\nu}_{e}$ at a distance of∼53 km.For the next galactic CCSN, JUNO has the capability of detecting a high statistics of SN events.The detection of a SN burst...
Nuclear effects in neutrino interactions are one of the major sources of systematic uncertainties in neutrino beam oscillation experiments. Our present understanding of these effects is still insufficient. Another source of uncertainty is the energy dependence of oscillation probability which is a nontrivial function of true incoming neutrino energy. This energy is reconstructed using...
The detection of the Solar Neutrino interaction rate from the CNO-cycle through the spectral analysis in Borexino is extremely difficult, given its spectral similarity with the Bi-210 background. The current strategy is based on the Bi-210 (β-, τ = 7 d) background independent constraint, coming from Pb-210 (β-, τ = 32 y) and decaying into Po-210(α, τ = 200 d) through the A=210 decay chain. In...
The Jiangmen Underground Neutrino Observatory is a 20 kton liquid scintillator low radioactive multi-purpose detector under construction at 700 meter deep underground in China. Its physics goal includes determining the neutrino mass hierarchy and also measure the solar neutrino oscillation parameters with a sub-percent precision. The light produced in the liquid scintillator will be measured...
The search for heavy neutrino mass-states is among the brightest possibilities in our quest for the microscopic nature of dark matter. One of the most powerful methods for such searches is momentum reconstruction in electron-capture (EC) nuclear decay, where the final state only contains the neutrino and the recoiling daughter atom. This approach is advantageous since it relies only on the...
Astrophysical ultra-high energy (UHE) neutrinos let us look inside the accelerators of ultra-high energy cosmic rays (UHECR), study the composition of UHECR, and study neutrino physics at the highest energies. We aim to detect Earth-skimming UHE tau neutrinos with the atmospheric imaging Cherenkov technique. Towards that goal, we are developing a prototype Cherenkov telescope that is scheduled...
The proposed Short-Baseline Neutrino (SBN) physics program at Fermilab will deliver a rich and compelling physics opportunity, including the ability to resolve a class of experimental anomalies in neutrino physics. The far detector of the SBN
program is the ICARUS-T600. The ICARUS-T600(760 tons) is the biggest LArTPC detector. The ICARUS-T600 was designed for
the low background, deep...
The Deep Underground Neutrino Experiment (DUNE) is based on a wide-band, intense neutrino beam from Fermilab, a far detector of large liquid argon time projection chambers, and a near detector to characterize the beam and constrain systematic uncertainties. The System for on-Axis Neutrino Detection (SAND) will be part of the DUNE near detector. It is based on a superconducting magnet (0.6T)...
One of the key parameters of the Standard Model, the weak mixing, arises as a consequence of the electroweak symmetry breaking. Its measurement at different momentum-transfers is a crucial test of the consistency of the Standard model, as it can confirm the running predicted by the theory. The high intensity beam of the future DUNE experiment will allow to perform a precise measurement of...
The RENO experiment has been taking data since August 2011 and successfully measured the smallest neutrino mixing angle, theta13, with neutron captured on Gadolinium (n-Gd) in target detector region. The experiment has also measured the mixing angle using an independent sample of neutron captures on Hydrogen (n-H). Because of a large accidental background in the n-H sample, an improved...
We propose a time variability test, Taunton, for IceCube that compares data to the expectations of steady signal plus background. This is a test that is anticipated to be used in candidate neutrino sources identified in a time-integrated search. A cumulative distribution function of the time difference between consecutive events is used in a Cramer Von-Mises test. This is the first criterium...
The absolute neutrino mass is still a missing parameter in the modern landscape
of particle physics.The HOLMES experiment aims to perform a direct measurement of the
neutrino mass with a sensitivity of the order of 2 eV. The neutrino mass will be studied through
the calorimetric measurement of the decay products of the weak process decay of 163 Ho. To
achieve the target sensitivity, HOLMES...