The Muon $g-2$ experiment at Fermilab is progressing towards its physics goal of measuring the muon anomalous magnetic moment with the unprecedented precision of 140 parts per billion. The experiment collected proposed statistics (number of detected decay positrons) and completed the scientific operation in June 2023. Two previous publications in 2021 and 2023 were based on the data taken in...
I will discuss recent advances on the description of lepton-nucleus interactions in the energy region relevant for oscillation experiments. Various methods employing Quantum Monte Carlo techniques have been employed to derive the presented results.
The Neutrinos at the Main Injector (NuMI) beamline at Fermilab generates an intense muon neutrino beam for the NOvA (NuMI Off-axis $\nu_e$ Appearance) long-baseline neutrino experiment. Over the years, the NuMI beamline has been pivotal in advancing neutrino physics, providing invaluable data and insights. This presentation offers updates and a comprehensive review of the lessons learned from...
New physics contributions to the (anti)neutrino-nucleon elastic scattering process can be constrained by precision measurements, with controlled Standard Model uncertainties. In a large class of new physics models, interactions involving charged leptons of different flavor can be related, and the large muon flavor component of accelerator neutrino beams can mitigate the lepton mass suppression...
Beam-intercepting devices such as beam windows and particle-production targets are critical components of accelerator target facilities for High Energy Physics (HEP) experiments. The high-power, pulsed structure of the particle beams used for these experiments leads to thermal shock and high-cycle fatigue in addition to radiation damage resulting from the accumulated particle fluence. This can...
NOvA is a long-baseline neutrino oscillation experiment consisting of two functionally identical tracking calorimeters, and a beam of neutrinos. The near detector is located at Fermilab, where it measures neutrinos coming from the 1 MW-capable NuMI beam. The beam can be run in neutrino or antineutrino mode, to produce a highly pure flux of muon (anti)neutrinos. The neutrinos then travel 810km...
The study of neutrino-nucleus scattering processes is important for the success of a new generation of neutrino experiments such as DUNE and T2K. Quasielastic neutrino-nucleus scattering, which yields a final state consisting of a nucleon and charged lepton, makes up a large part of the total neutrino cross-section in neutrino experiments. A significant source of uncertainty in the...
T2K is a long-baseline experiment for the measurement of neutrino and antineutrino oscillations. (Anti)neutrinos are produced by the J-PARC accelerator and measured at the ND280 near detector, and then at the Super-Kamiokande far-detector, in Kamioka. The most recent results of neutrino oscillations will be presented, featuring world-leading sensitivities on the search of Charge-Parity...
The Muon Station for Science, Technology, and Industry (MELODY) will be the first muon source at the China Spallation Neutron Source (CSNS) in China. In this presentation, we talk about the updated target station design including the target, shielding, proton beam dump and cooling. We also give details about our muon production target of copper, especially the AI optimization used for...
The hadronic responses and inclusive cross sections for lepton-nucleus scattering are computed within an independent-particle relativistic mean field model to describe the initial and final states, and one- and two-body current operators leading to the one-nucleon knockout reaction. The two-body currents produce an increase in the tranverse sector that improves the agreement with data,...
ICARUS is a liquid argon time projection chamber operating as the far detector in the Short-Baseline Neutrino (SBN) program. The detector is located at Fermilab along the Booster Neutrino Beamline and off axis from the NuMI beamline. We present an analysis that utilizes the ICARUS neutrino detector in order to search for dimuon signals from long lived particles produced by kaons from the NuMI...
IceCube DeepCore is a subarray of the IceCube Neutrino Observatory that gives the detector sensitivity to GeV-scale atmospheric neutrinos by virtue of the closer spacing of its digital optical modules. With ten years of observation of GeV neutrinos over a range of long baselines, IceCube has placed competitive constraints on the atmospheric oscillation parameters $\sin^2(\theta_{23})$ and...
We report on comparison of the predictions of neutrino event generators (run in electron scattering mode) to a recent global extraction of the 12C and 40Ca Longitudinal (RL) and Transverse (RT ) nuclear electromagnetic response functions from an analysis of all available electron scattering dats on carbon and calcium. The response functions are extracted for a large range of energy transfer ν,...
Tokai to Kamioka (T2K) is a long-baseline neutrino oscillation experiment that measures oscillation parameters related to both $\nu_\mu(\bar{\nu}_\mu)$ disappearance and $\nu_e(\bar{\nu}_e)$ appearance in a $\nu_\mu(\bar{\nu}_\mu)$ beam. T2K uses Super-Kamiokande (SK) as its far detector, and SK detector systematic errors are currently among the leading sources of systematic uncertainty in the...
Many kinds of new-physics signatures are predicted from extensions to the Standard Model, motivating searches in extant data and sensitivity estimates in future planned neutrino detectors to look for evidence of physics beyond the Standard Model. A major thrust in recent years has been to formulate model-independent frameworks to facilitate analyses with detailed treatments of experimental...
The J-PARC muon g-2/EDM experiment aims to measure the muon magnetic moment anomaly ($a_μ$ = (g-2)/2) and to search for the muon electric dipole moment, with sensitivity comparable to the highest in the world. This will be achieved using a small-emittance muon beam, created by cooling muons to thermal energy at room temperature and accelerating them with a multi-stage linac. The small...
We present the combination of the SuSAv2 and dynamical coupled-channels (DCC) models. The DCC model, an approach to study baryon resonances through electron and neutrino induced meson production reactions, has been implemented for the first time in the SuSAv2-inelastic model to analyze the resonance region. The outcomes of these approaches are firstly benchmarked against (e, e') data on 12C....
The Muon g-2 experiment, FNAL E989, collected muon beam data over six accelerator operations years from 2017 to 2023. Since the final experimental uncertainty is expected to be statistically limited, time during accelerator-on periods was spent almost entirely on collecting “production” quality muon data and the necessary associated magnetic field measurements (“trolley runs”). Limited time...
We present a compact scintillating fibre timing detector developed for the Mu3e experiment. Mu3e is one of the flagship experiments of the Swiss particle physics scene, aiming to search for the charged lepton flavour violating “neutrinoless” muon decay (μ+ -> e+e+e-). Mu3e is planned to start taking data in 2025 at the Paul Scherrer Institute (CH), using the world's most intense continuous...
Current and future large neutrino liquid argon time projection chamber (LArTPC) experiments can broaden their physics reach by incorporating isolated MeV-scale features present in their data. In this study, we use data from the MicroBooNE detector, an 85 tonnes LArTPC exposed to Fermilab neutrino beams from 2015 until 2021, to demonstrate new calorimetric and particle discrimination...
There are several long-baseline neutrino oscillation experiments around the world, which study neutrino properties by observing the effects of neutrino oscillations over long distances. Most of these experiments also have near detectors to constrain the properties of the neutrino beam, such as its flux and energy spectrum, and to control systematic uncertainties. To achieve a narrower neutrino...
The Precision Reactor Oscillation and SPECTrum (PROSPECT) reactor antineutrino experiment is designed to detect eV-scale sterile neutrino oscillation at short baselines. PROSPECT's segmented detector is positioned approximately 7 meters away from the compact research reactor core at Oak Ridge National Laboratory's High Flux Isotope Reactor. During the data collection period, certain...
We present the first measurement of differential cross sections for charged-current muon neutrino interactions on argon with one muon, two protons, and no pions in the final state, using the MicroBooNE Liquid Argon Time Projection Chamber. Such interactions leave the target nucleus in a two-particle two-hole state; these states are of great interest, but currently, there is limited information...
A comprehensive international effort has been underway to elucidate the properties and behaviors of neutrinos. A major source of systematic uncertainties in studying neutrino-induced interactions comes from neutrino-nucleus cross-section models, highlighting the need for more precise statistical measurements. MINERvA, an on-axis neutrino-nucleus scattering experiment located at the Fermi...
The NOvA experiment, a long-baseline neutrino experiment based at Fermilab, is dedicated to measuring various neutrino oscillation parameters with high precision. One of the significant contributions to systematic uncertainty in these measurements is the cross-section systematics, which arises from an incomplete understanding of nuclear models and neutrino-nucleus interactions. Recently, there...
LArIAT is a liquid argon time projection chamber (LArTPC) experiment in a test beam, took data at Fermilab from 2015 to 2017 to understand and characterize interactions of particles in LAr which are commonly observed in neutrino-Ar final-states. In LArTPCs tracks for pions and muons that stop in the TPC have similar ionization profiles, making the particle identification hard. We are...
The MicroBooNE detector is a liquid argon time projection chamber with an active mass of 85 tons. It is located in the Fermilab Booster Neutrino Beam, where it collected data from 2015 to 2020. As part of its primary scientific objectives, MicroBooNE aims to extract precise measurements of muon neutrino - argon charged current interaction cross-sections. Such measurements are important to...
The non-standard interaction (NSI) of neutrinos mediated by a scalar particle is an interesting new physics scenario to explore in oscillation experiments. The scalar NSI contribution appears as a perturbation to the mass term in the neutrino Hamiltonian, giving a unique possibility of probing absolute neutrino mass through oscillations. The linear scaling of scalar NSI with matter density...
We have developed a neutrino detector with threshold energies from ~0.2 to 100 MeV in a clean detection mode almost completely void of spurious backgrounds. It was initially developed for the NASA neutrino Solar Orbiting Lab project to put a solar neutrino detector very close to the Sun with 1000 to 10,000 times more solar neutrino flux than on Earth, but similar interactions have been found...
A novel three-dimensional projection scintillator tracker called SuperFGD is one of the key components of the near detector upgrade of the T2K experiment. Due to the nanosecond timing resolution and fine granularity, SuperFGD will provide essential data for studying neutrino interactions. A prototype of the SuperFGD detector was exposed to a neutron beam at LANL to study its response to...
Portrait of a Scientist aims to deconstruct stereotypes about what a scientist looks like and how they act by showcases people's multifaceted identities. Participants are asked to complete the phrase "I am a scientist and I also..." with any hobby, role, or identity that they feel comfortable sharing. The most engagement with the project, which has been running since 2021, has occurred when...
EMPHATIC (Experiment to Measure the Production of Hadrons At a Test beam In Chicagoland) is a Fermilab-based table-top size experiment focused on hadron production measurements. Flux is a limiting systematic for all neutrino cross section measurements by current experiments and we rely on a-priori predictions of the flux for analyses, including measurements of...
The Precision Reactor Oscillation and SPECTrum (PROSPECT) experiment is a short-baseline reactor experiment with the goal of measuring the antineutrino spectrum from the High Flux Isotope Reactor (HFIR). It 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...
MicroBooNE is an 85-tonne active mass liquid argon time projection chamber (LArTPC) neutrino detector exposed to the Booster Neutrino Beamline (BNB) at Fermilab. One of the key physics goals is the precise measurement of neutrino interactions on argon in the 1 GeV energy regime. The study of heavier mesons in neutrino interactions will help to improve the background estimates for future...
The Jiangmen Underground Neutrino Observatory (JUNO), located in Southern China, is a next-generation neutrino experiment that consists of a 20-kton liquid scintillator detector. JUNO's primary objective is to determine the neutrino mass ordering (NMO) via reactor neutrino oscillation measurements. Cosmic muons contribute to one of the dominant background sources to reactor neutrinos by...
The Short-Baseline Near Detector (SBND), a liquid argon time projection chamber (LArTPC) located at Fermilab, is on track to collect the world's largest neutrino-argon scattering dataset, at a rate of over two million interaction events per year. Such statistics, combined with advanced detector and software capabilities, will enable excellent cross section measurements, addressing previous...
The NINJA experiment aims to precisely measure neutrino interactions using a nuclear emulsion detector to reduce systematic errors in the neutrino oscillation experiments including T2K experiment, and search for sterile neutrinos. The nuclear emulsion, with its sub-micron positional resolution, allows for detecting low-momentum charged particles such as protons with a threshold of 200 MeV/c....
MicroBooNE is a liquid argon time projection chamber in the Booster Neutrino Beam at Fermilab. One of MicroBooNE's primary goals is to investigate the MiniBooNE low energy excess of events containing a single electromagnetic shower. The largest predicted source of single shower events is charged current electron neutrino interactions, but MicroBooNE has disfavored an excess of this topology in...
The Lorentz Invariance is the foundation of other successful theories, like quantum field theory, and is connected to fundamental symmetries, like charge, parity, and time reversal (CPT), which is essential in the Standard Model of particle physics. Alternative theories proposing that Lorentz Invariance may break in some scales have been considered in the context of neutrino oscillations, as...
The next generation of neutrino oscillation experiments, JUNO, DUNE, and HK, are under construction now and will collect data over the next decade and beyond. As there are no approved plans to follow up this program with more advanced neutrino oscillation experiments, we consider here one option that had gained considerable interest more than a decade ago: a neutrino factory. Such an...
Lepton flavour violation (LFV), and lepton flavour university violation (LFUV), are a striking signature of potential beyond the Standard Model physics. This talk presents recent searches and tests for LFV and LFUV with the ATLAS detector, using proton-proton collisions with a centre of mass energy of 13 TeV. A broad range of models and signatures are considered, including leptoquarks, heavy...
The ENUBET project recently concluded the R&D for a site independent design of a monitored neutrino beam for high precision cross section measurements, in which the neutrino flux is inferred from the measurement of charged leptons in an instrumented decay tunnel. In this phase three fundamental results were obtained and will be discussed in this talk: 1) a beamline not requiring a horn and...
The NEUT interaction generator is used in Super-Kamiokande, T2K and Hyper-Kamiokande to simulate neutrino interactions with between 100 MeV and a few TeV of energy. This talk will present the recent developments and perspective for NEUT.
High-energy astrophysical neutrinos, recently discovered by IceCube up to energies of several PeV, opened a new window to the high-energy Universe. Despite IceCube's excellent muon flavour identification, tau neutrinos have still not been unambiguously detected. To address this limitation, we present a concept for a large-scale observatory of astrophysical tau neutrinos in the 1 – 100 PeV...
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20-kton liquid scintillator detector currently under construction 700 m underground in southern China. The detector is located 53 km from the Taishan and Yangjiang nuclear power plants and will simultaneously probe solar ($\Delta m^2_{21}$) and atmospheric ($\Delta m^2_{31}$) oscillations using reactor antineutrinos. The primary goals...
The neutrinos in the diffuse supernova neutrino background (DSNB) travel over cosmological distances and this provides them with an excellent opportunity to interact with dark relics. We show that a cosmologically-significant relic population of keV-mass sterile neutrinos with strong self-interactions could imprint their presence in the DSNB. The signatures of the self-interactions would be...
Recent LFV results from CMS
The international GENIE Collaboration maintains and develops an extensive software suite to meet the simulation needs of the broad neutrino community. GENIE develops a universal event generator simulating neutrino interactions from MeV to PeV energy scales, and a global analysis of neutrino scattering data used for model characterization, tuning and uncertainty evaluations. In recent years,...
The discovery of new, flavor-dependent neutrino interactions would provide compelling evidence of physics beyond the Standard Model. We focus on interactions generated by the several anomaly-free, gauged, abelian lepton number symmetries that introduce a new matter potential sourced by electrons and neutrons, potentially impacting neutrino flavor oscillations. We estimate constraints on these...
What do the accelerator target stations of the next decade look like? The NuMI beamline, fed by Fermilab’s Main Injector, recently exceeded 1 MW beam power. Future experiments fed by the PIP-II superconducting linear accelerator might demand upwards of 2 MW in continuous-wave mode, compared the pulsed beams typical of neutrino experiments. Looking further into the future, the Muon Collider...
The Hyper-Kamiokande (Hyper-K) is the third generation of underground water Cherenkov detectors in Japan. It will serve twofold: as the far detector for a long-baseline neutrino oscillation experiment for the upgraded, to 1.3 MW power, J-PARC muon neutrino/antineutrino beam and as a detector capable of observing proton decays, atmospheric neutrinos, and neutrinos from astronomical sources. It...
NuWro, a state-of-the-art Monte Carlo generator developed by theorists at the University of Wroclaw, simulates neutrino-nucleus interactions. This talk will demonstrate NuWro's capabilities, methodologies, and applications in simulating neutrino-nucleus interactions across a wide energy range, from a few hundred MeV to hundreds of GeV.
In my talk, I will discuss various interaction models...
The Cosmic Neutrino Background (C$\nu$B) constitutes the last observable prediction of the standard cosmological model, which has yet to be detected directly. In this talk, I will discuss how the coherent scattering of neutrinos off dense neutron matter can lead to an additional cooling channel in neutron stars (NSs). I will then discuss the prediction of a boosted C$\nu$B flux on Earth from...
The muEDM experiment at the Paul Scherrer Institute (PSI) aims to measure the muon's electric dipole moment (EDM) using the frozen spin technique. This approach involves storing muons within a solenoid and applying a radial electric field to counteract the spin precession caused by the anomalous magnetic moment. Any remaining longitudinal precession would indicate a non-zero EDM. The...
Large liquid argon time projection chamber (LArTPC) neutrino detectors, such as those planned for the Deep Underground Neutrino Experiment (DUNE), show considerable promise as a platform for next-generation measurements of supernova neutrinos. Thanks to the neutron excess in 40Ar as well as the detailed tracking possible with LArTPCs, these detectors are expected to be uniquely capable of...
The IceCube Upgrade will be an extension of the IceCube Neutrino Observatory which consists of the addition of 7 more densely instrumented strings placed within the IceCube DeepCore volume to enhance performance in the GeV energy range. The additional strings will feature new types of instruments and optical modules, each containing multiple photomultiplier tubes (PMTs), which will improve the...
The Achilles is a novel neutrino event generator that takes inspiration from the tools developed by the LHC community. In this talk, I will discuss the current status of Achilles, with a focus on including resonance interactions, pion cascades, and the one-body-two-body interference terms. Additionally, I will discuss the near future plans for Achilles.
This talk presents a Monte Carlo simulation implemented with the GiBUU model tailored for neutrino experiments. Specifically, we focus on its implementation in generating events in a generic liquid argon time projection chamber and compare the results with those from other neutrino event generators, such as GENIE. The simulation produces realistic neutrino event samples, contributing to the...
Dark matter direct detection experiments like XENONnT, PANDAX-4T and LUX-ZEPLIN are sensitive to solar neutrino-electron scatterings, neutrino-nucleus scattering, and potentially to the Migdal effect. I'll discuss how solar neutrino-electron scatterings allow to constrain the electromagnetic properties of neutrinos, further constraining neutrinophilic light dark sectors. Furthermore, I'll...
T2K (Tokai to Kamioka) is a Japan-based long-baseline neutrino oscillation experiment designed to measure (anti)neutrino flavor oscillations. A muon (anti-)neutrino beam peaked around 0.6 GeV is produced in Tokai and directed toward the water Cherenkov far detector Super-Kamiokande (SK) located at 295 km. The ND280 is used to characterise the neutrino beam before the oscillation, and its data...
The muon collider is an excellent prospect as a multi-TeV lepton collider, with the possibility for high luminosity and reach to 10 TeV centre-of-mass energy per parton. In order to realise high luminosity, high beam brightness is required. Ionisation cooling, which was demonstrated recently by the Muon Ionization Cooling Experiment (MICE), is the technique proposed to realise sufficient...
For the operation of precision neutrino experiments, the understanding of neutrino interactions with matter are preconditioned requirements of all detections and measurements of neutrinos. The largest uncertainties in estimating neutrino-nucleus interaction cross sections arise in the incomplete understanding of nuclear effects. In the study of neutrino oscillations and nuclear scattering...
We examine solar neutrinos in dark matter detectors, focusing on flavor-dependent radiative corrections to the coherent elastic neutrino-nucleus scattering (CE$\nu$NS) cross section within a three-flavor framework, incorporating matter effects from the Sun and Earth. Detectors with thresholds $\lesssim 1$ keV and exposures of $\sim 100$ ton-years could probe beyond-tree-level effects and offer...
The neutrinos from STORed Muons (nuSTORM) facility will create neutrino beams through muon decay in a storage ring, targeting %-level precision in flux determination. With access to two neutrino flavours, it enables precise measurement of 𝜈-A cross sections and exhibits sensitivity to Beyond Standard Model (BSM) physics. With muons in the 1– 6 GeV/c momentum range, it covers neutrino energy...
Paleo-detectors utilize the fact that mineral lattices can retain deformations in their structure caused by charged particle interactions. We consider the search for proton decay, $p\rightarrow\overline{\nu}K^+$, in such detectors via the possible crystal damage produced by the endpoint of the charged kaon. Atmospheric neutrino induced backgrounds render this search impossible on Earth, but in...
The Short-Baseline Near Detector (SBND) is a crucial component of the Short-Baseline Neutrino (SBN) Program, situated 110 meters from the Booster Neutrino Beam (BNB) target. This 112-ton Liquid Argon Time Projection Chamber (LArTPC) Near Detector is optimally positioned to investigate the potential existence of an additional flavor of neutrino through neutrino oscillation. Due to its proximity...
Neutrino event generators make use of intranuclear cascade models (INCs), to predict the kinematics of hadron production in neutrino-nucleus interactions. We perform a consistent comparison of different INCs, by using the same set of events as input to the NEUT, NuWro, Achilles and INCL INCs. The inputs correspond to calculations of the fully differential single-proton knockout cross section,...
NOvA is a long-baseline neutrino oscillation experiment that looks for the disappearance of muon (anti)neutrinos and the appearance of electron (anti)neutrinos in a beam of muon (anti)neutrinos. In addition to using Bayesian methods, NOvA employs a classical maximum-likelihood estimation to measure neutrino mixing parameters, determine the neutrino mass ordering, and search for CP violation in...
The decay-at-rest of charged kaons produces monoenergetic muon neutrinos with an energy of 236 MeV. The study of these neutrinos at short baselines allows us to constrain new neutrino interactions. In this work, we study kaon decay-at-rest (KDAR) neutrinos at the \jsns experiment where the J-PARC Spallation Neutron Source (JSNS) will produce such types of neutrinos with decay-at-rest processes...
Nuclear effects in neutrino-nucleus scattering are one of the main sources of uncertainty in the analysis of neutrino oscillation experiments. Due to the extended neutrino energy distribution, very different reaction mechanisms contribute to the cross section at the same time. Measurements of muon momentum in CC0$\pi$ events are very important for experiments like T2K, where most of the...
We present a comprehensive analysis of nonstandard neutrino interactions with the dark sector in an effective field theory (EFT) framework, considering exact analytic formulae for the differential scattering cross sections of neutrinos with scalar, fermionic, and vector dark matter (DM) for dark sector models with mediators of different spins. We then implement the full catalog of...
The Deep Underground Neutrino Experiment (DUNE) aims to make precision measurements of neutrino oscillation parameters. To accomplish this, new technologies must be utilized at the DUNE Near Detector to handle characterizing the intense neutrino beam. We are testing a novel Liquid Argon Time Projection Chamber (LArTPC) detector prototype with a modularized setup, composed of 4 modules each...
A storage ring proton electric dipole moment (EDM) experiment (pEDM) would be the first direct search for a proton EDM and would improve on the current (indirect) limit by 5 orders of magnitude. It would surpass the current sensitivity (set by neutron EDM experiments) to QCD CP-violation by 3 orders of magnitude, making it potentially the most promising effort to solve the strong CP problem,...
Machine learning algorithms have long been utilized across many experimental collaborations within the neutrino physics community in applications to ascertain the singular kinematic quantity of initial neutrino energy for use in neutrino oscillation analyses. However, most of these algorithms do not incorporate a coherent physical picture of initial neutrino kinematics, opting to introduce...
We propose here a set of new methods to directly detect light mass dark matter through its scattering with abundant atmospheric muons or accelerator beams. Firstly, we plan to use the free cosmic-ray muons interacting with dark matter in a volume surrounded by tracking detectors, to trace possible interaction between dark matter and muons. Secondly, we will interface our device with domestic...
MINERvA is a dedicated neutrino-nucleus interaction experiment at Fermilab that took data from 2009-2019. MINERvA has made, and continues to make a wide range of measurements that inform the development of neutrino-nucleus interaction models that are used in current and future neutrino oscillation experiments. MINERvA has a wide range of different target nuclei ranging from hydrogen (in the...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment in the US. It will have four far detector modules, each holding 17 kilotons of liquid argon. These modules sit 1500 meters underground and 1300 kilometers from the near detector complex. The Vertical Drift (VD) detector module will feature X-ARAPUCA photon detectors installed on...
The NOvA Experiment is designed to study neutrino oscillations utilizing Fermilab’s “Neutrinos from the Main Injector” (NuMI) beam. The experiment features a near detector located at Fermilab and a far detector located in Ash River, Minnesota. The NOvA Test Beam program aims to enhance the physics reach of NOvA by improving understanding of systematic uncertainties associated with the detector...
I will discuss $\mu \rightarrow e$ conversion signatures stemming from light new physics at high-intensity muon experiments. Specifically, I'll focus on the discovery potential and reach of the $\mu \rightarrow 5e$ channel at Mu3e as well as the prospect of 'signal' electrons from muon-induced baryon number violation at Mu2e and COMET.
The NINJA experiment aims to measure neutrino-nucleus scattering using the J-PARC neutrino beam in the energy range of sub-GeV to a few-GeV. The NINJA detector comprises nuclear emulsion films interleaved with target materials, offering submicron spatial resolution and precise measurement of charged particles, particularly with the proton momentum threshold of 200 MeV/c.
We have collected...
Dark Matter (DM) is one of the most interesting research topics in physics. Many particle physicists are trying to identify it because we know that dark matter is likely to be a major component of a complete fundamental description of nature. The Muon g-2 Experiment at Fermilab measures the anomalous precession frequency of the muon. Oscillations of this precession frequency could be produced...
The NOvA experiment, a long-baseline neutrino experiment, uses two detectors: one located at Fermilab and another at Ash River, Minnesota. The Near Detector, situated approximately 100 meters underground, observes cosmic muons at a rate of ~35 Hz, while the Far Detector, located on the surface, observes cosmic muons at a rate of ~150 kHz. The rate of cosmic muons exhibits seasonal variation...
Using the NOvA near Detector, the NOvA collaboration is able to measure a number of neutrino scattering processes.
DUNE's ability to detect and study astrophysical neutrinos will critically depend on the capability of liquid argon time projection chambers (LArTPCs) to reconstruct particle interactions that deposit extremely small amounts of energy in the active LAr. MicroBooNE has demonstrated reconstruction capabilities for energy depositions at the ~MeV and sub-MeV scale, which manifest as isolated...
The phenomenon of neutrino oscillation is of great theoretical and experimental interest for our
understand of the nature of the neutrino and its implication for physics beyond the standard Model.
Currently available neutrino oscillation experiments can already constrain neutrino mixing parameters
with a confidence level up to 3 standard deviations ($\sigma$). However, it remains...
The Jiangmen Underground Neutrino Observatory (JUNO) will be a 20-kiloton liquid scintillator detector, currently under construction in southern China. JUNO will be equipped with 17,612 20-inch photomultiplier tubes (PMTs) and 25,600 3-inch PMTs and will address a variety of physics programs including reactor/atmospheric/solar/geo/supernova neutrino observations and new physics searches. The...
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 collecting neutrino beam data. SBND is characterized by superb imaging capabilities and will...
The main goal of the long-baseline experiment T2K is a search for CP violation in neutrino oscillations. To obtain a better sensitivity, T2K upgraded the near neutrino detector. A novel 3D highly granular scintillator detector called SuperFGD of a mass of about 2 tons was built, installed into ND280 magnet and commissioned with the neutrino beam. It will serve as a fully-active neutrino...
The ICARUS collaboration first employed the 760-ton T600 detector in a successful three-year physics run at the underground LNGS laboratory in the CERN Neutrino to Gran Sasso beam. Then after a significant overhaul at CERN, the T600 detector was installed at Fermilab as the far detector for the Short-Baseline Neutrino (SBN) Program at Fermilab. The SBN program is designed to definitively test...
Accelerator-based neutrino experiments estimate neutrino fluxes using detailed simulations of their beamlines. Models of hadronic interactions of the primary beams with their target and secondary interactions are the dominant source of systematic uncertainty in modern flux predictions. The NA61/SHINE experiment at CERN is providing precise measurements that will constrain these...
Tens of MeV neutrinos, such as those from stopped pion or core-collapse supernova sources, interact with target nuclei in detectors through either coherent elastic or inelastic scattering processes. These interactions provide valuable insights into various Standard Model and Beyond the Standard Model phenomena, with significant implications for nuclear physics, particle physics, and...
EMPHATIC (Experiment to Measure the Production of Hadrons At a Test beam In
Chicagoland) is a table-top size experiment at Fermilab focused on hadron production measurements relevant to reducing the total neutrino flux uncertainties at accelerator-based neutrino experiments. The goals of the experiment include addressing the gaps in our understanding of hadron-scattering and the first-ever...
ICEBERG is a liquid argon time projection chamber at Fermilab for the purpose of testing detector components and software for the Deep Underground Neutrino Experiment (DUNE). The detector features a 1.15m x 1m anode plane following the specifications of the DUNE horizontal drift far detector and a newly installed X-ARAPUCA photodetector. The status of ICEBERG will be reported along with...
We study neutrino and antineutrino induced eta production from the free nucleon and nuclear targets. The hadronic current receives contribution from the background terms as well as from the nucleon and delta resonance excitations. We have considered only those nucleon/delta resonances which are present in the PDG having spin ≤ 3/2 and mass in the range < 2 GeV with significant branching ratio...
The Liquid Argon Time Projection Chamber (LArTPC) technology is widely used in neutrino experiments and beyond the standard model physics searches such as nucleon decay and dark matter. The Deep Underground Neutrino Experiment (DUNE) will employ the LArTPC technology at an unprecedented scale for physics programs, benefiting from its large target mass and excellent imaging, tracking, and...
In accelerator-based neutrino experiments, uncertainties in neutrino flux represent a significant systematic uncertainty in baseline predictions for both near and far detectors, as well as in single-detector measurements such as neutrino cross sections and in Beyond Standard Model searches. These uncertainties stem from interaction models in the hadronic processes that follows the primary...
The MicroBooNE experiment utilizes a liquid-argon time projection chamber to detect neutrinos both on-axis from Fermilab’s Booster Neutrino Beam (BNB) and off-axis from the Neutrinos at the Main Injector (NuMI) beam. MicroBooNE is investigating the observed anomalous excess of electron neutrino events reported by the MiniBooNE experiment. In this presentation, we report on searches for...
STEREO is a high-precision experiment that studies the antineutrinos produced by the highly enriched U-235 core of the nuclear reactor at the Institute Laue-Langevin (ILL) in Grenoble, France. The experiment aims to investigate two key anomalies observed in previous reactor neutrino experiments. The first anomaly, known as the "Reactor Antineutrino Anomaly (RAA)," involves a discrepancy in the...
Making high-precision measurements of neutrino oscillation parameters requires an unprecedented understanding of neutrino-nucleus scattering. To help fulfill this need, MicroBooNE has produced an extensive set of multi-differential charged-current muon neutrino cross-section measurements which probe both the leptonic and hadronic systems. This talk will present the first energy-dependent...
Current and future experiments need to know the stopping power of liquid argon for charged particles. It is used directly in calibration, to measure muon energy, and more broadly affects the simulation of all charged particles. The main parameter that controls stopping power is the mean excitation energy, or I-value. Commonly used values are $(188\pm6)$eV from ICRU-37 (1984), and...
The Short-Baseline Near Detector (SBND) is a 100-ton scale Liquid Argon Time Projection Chamber (LArTPC) neutrino detector positioned in the Booster Neutrino Beam at Fermilab, as part of the Short-Baseline Neutrino (SBN) program. The detector is currently being commissioned and is collecting neutrino beam data. Located only 110 m from the neutrino production target, it will be exposed to a...
The limitations of the Standard Model in explaining neutrino masses and neutrino mixing leads
to the exploration of frameworks beyond the Standard Model (BSM). The possibility of neutrinos
interacting with fermions via a scalar mediator is one of the interesting prospects. The study of
neutrino non-standard interactions (NSI) is a well-motivated phenomenological scenario to explore
new...
Mu2e will search for coherent, neutrinoless conversion of muons into electrons in the nucleus field of aluminum with a sensitivity improvement of a factor of 10,000 over existing limits. Probing the charged lepton flavor-violating reaction at such sensitivity may uncover new physics at a scale unreachable by direct searches at current or planned high-energy colliders. The experiment...
Should muon-to-electron conversion in the field of a nucleus be found in the current generation of experiments, the measurement of the atomic
number dependence of the process will become an important experimental
goal. We present a new treatment of the (Z,A) dependence of coherent
muon-to-electron conversion in 236 isotopes. Our approach differs from
earlier work in several ways. Firstly,...
We study the possibility of measuring T (time reversal) violation in a future
long-baseline neutrino oscillation experiment. By assuming a neutrino factory as a
staging scenario of a muon collider at the J-PARC site, we find that the \nu_e → \nu_\mu oscillation probabilities can be measured with a good accuracy at the Hyper-
Kamiokande detector. By comparing with the probability of the...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation, long-baseline experiment that will explore some of the fundamental open questions in neutrino physics. ND-LAr is a Liquid Argon Time Projection Chamber (LArTPC) in the near detector complex of DUNE that will precisely characterize the outgoing neutrino beam. With a modularized design, as well as state-of-the-art light and...
The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment that will feature liquid argon time projection chamber technology for its near and far detectors. The liquid argon near detector (ND-LAr) is designed to handle the high intensity expected from the Long-Baseline Neutrino Facility (LBNF) beam using optically-separated TPC volumes, a...
Upcoming neutrino experiments will soon search for new neutrino interactions more thoroughly than ever before, boosting the prospects of extending the Standard Model. In anticipation of this, we forecast the capability of two of the leading long-baseline neutrino oscillation experiments, DUNE and T2HK, to look for new flavor-dependent neutrino interactions with electrons, protons, and...
JUNO (Jiangmen Underground Neutrino Observatory) will be the largest liquid scintillator detector for neutrino physics. It will employ 20 000 tons of linear alkyl benzene (LAB), 2.5 g/L of PPO and 3 mg/L of bis-MSB. The main goal of JUNO is to determine the neutrino mass ordering in six years of data taking at 3 σ level.
The main detector of JUNO is a gigantic (35.4 meter of diameter)...
Mu3e is an experiment under construction at the Paul Scherrer Institute in Switzerland, aiming to search for the lepton flavour violating decay: mu+ -> e+e+e-. Any observation of this decay would indicate physics beyond the standard model (SM), as in the SM, neutrinos have no mass, and the decay is forbidden. Through extensions of the SM, the LFV decay becomes allowed through loops but is...
Understanding neutrino-argon interactions with final-state pions or rare processes is vital for current and future argon-based neutrino experiments. In particular, interactions with pions will dominate the event rate observed at the forthcoming Deep Underground Neutrino Experiment and will be major backgrounds to appearance searches. Meanwhile, rare final states, such as those including Λ, K,...
Discovering new neutrino interactions would represent evidence of physics beyond the Standard Model. We focus on new flavor-dependent long-range neutrino interactions mediated by ultra-light mediators, with masses below $10^{-10}$~eV, introduced by new lepton-number gauge symmetries $L_e-L_\mu$, $L_e-L_\tau$, and $L_\mu-L_\tau$. Because the interaction range is ultra-long, nearby and distant...
The Near Detector of the T2K experiment at J-PARC has recently being upgraded in order to reduce the present systematic uncertainties affecting the oscillation parameters measurements and to exploit the increased neutrino beam power of the J-PARC complex.
One of the major improvements to the T2K ND280 detector consisted of the integration of two large size (~ 3m3 each) new horizontal High...
Charged lepton flavor violation (CLFV) is expected in a diverse set of new physics scenarios. The current generation of experiments in the muon sector probe CLFV in three complementary channels: muon to electron conversion (Mu2e, COMET), muon to electron and gamma (MEG-II), and muon to three electrons (Mu3e). These experiments aim to enhance existing limits by several orders of magnitude and...
We investigate the effect on neutrino oscillations generated by new physics interactions between neutrinos and matter. Specifically, we focus on scalar-mediated nonstandard interactions (NSI) whose impact fundamentally differs from that of vector-mediated NSI. Scalar NSI contribute as corrections to the neutrino mass matrix rather than the matter potential and thereby predict distinct...
We report on a global fit of neutral-current elastic (NCE) neutrino-scattering data and parity-violating electron-scattering (PVES) data with the goal of determining the strange quark contribution to the vector and axial form factors of the proton. Knowledge of the strangeness contribution to the axial form factor, $G_A^s(Q^2)$, at low $Q^2$ will reveal the strange quark contribution to the...
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20-kiloton liquid scintillator detector, currently under construction in southern China. JUNO aims to reach an unprecedented energy resolution of 3% at 1 MeV to achieve its primary physics goal of determining the neutrino mass ordering, by resolving fine structure due to flavor oscillations in the antineutrino energy spectrum from...
In this talk, I present a light detection system called APEX (Aluminum Profiles with Embedded X-arapucas) targeted for next generation long-baseline neutrino experiment DUNE phase II FD3 where large-area light trap photodetectors will be instrumented on the entire field cage of a 17-kt LArTPC module. The photodetectors will cover four vertical walls of a DUNE vertical drift (VD) like LArTPC...
Atmospheric neutrinos, through their weak interactions, serve as an independent tool for exploring the internal structure of Earth. This information is complementary to that obtained from seismic and gravitational measurements. The Earth matter effects depend upon the energy of neutrinos and the electron density distribution they encounter during their journey through Earth, and hence, can be...
The choice of unfolding method for a cross-section measurement is tightly coupled to the model dependence of the efficiency correction and the overall impact of cross-section modeling uncertainties in the analysis. A key issue is the dimensionality used, as the kinematics of all outgoing particles in an event typically affects the reconstruction performance in a neutrino detector. OmniFold is...
A high-precision measurement of $\Delta m^2_{31}$ and $\theta_{23}$ is inevitable to estimate the Earth's matter effect in long-baseline experiments which in turn plays an important role in addressing the issue of neutrino mass ordering and to measure the value of CP phase in $3\nu$ framework. After reviewing the results from the current experiments and discussing the near-future sensitivities...
The Deep Underground Neutrino Experiment (DUNE) is a next generation long-baseline neutrino experiment that will send an intense beam of neutrinos through two detector complexes: a near detector complex located at Fermilab (Chicago), and a far detector complex located ~1.5 km underground at Sanford Underground Research Facility (SURF) in South Dakota.
The DUNE far detector (FD) will consist...
The GiBUU´neutrino generator has been extended to also cover the neutrino fluxes encountered at the FASER experiment at CERN. Predictions for final state energy distributions and multiplicities are made. Particular emphasis is placed on a discussion of the extraction of formation times and interaction rates of newly formed hadrons.
After the landmark discovery of non-zero $\theta_{13}$ by the modern reactor experiments, unprecedented precision on neutrino mass-mixing parameters has been achieved over the past decade. This has set the stage for the discovery of leptonic CP violation (LCPV) at high confidence level in the next-generation long-baseline neutrino oscillation experiments. In this work, we explore in detail...
High-resolution accelerator neutrino detection requires massive active material and fine-grained 3D tracking capability.
Organic scintillators can offer both, combined with sub-nanosecond time resolution.
A millimeter, or even sub-millimeter, particle tracking resolution would be desirable to resolve those nuclear effects that are known to introduce a bias in the reconstruction of the...
In this contribution, we present a proof-of-concept, fine-granularity particle detector constructed from plastic scintillating fibres (SciFi) readout with a Single-Photon Avalanche Diode (SPAD) array sensor, intended for the next generation of neutrino experiments. These experiments will be limited by systematic uncertainties, of which many can be constrained by precisely reconstructing...
Accurate neutrino interaction models are crucial for reducing experimental uncertainties and require target-specific cross-section measurements. Understanding neutrino-argon interactions with final-state pions is vital for current and future argon-based neutrino experiments such as the Deep Underground Neutrino Experiment, where these reaction channels will play a dominant role. MicroBooNE, a...
We explore the connection between the low-scale CP-violating Dirac phase $(\delta)$ and high-scale leptogenesis in a Left-Right Symmetric Model (LRSM) with scalar bidoublets and doublets. The model's fermion sector includes one sterile neutrino $(S_L)$ per generation, enabling a double seesaw mechanism. This mechanism, performed via type-I seesaw twice, generates a Majorana mass term for heavy...
We study the possibility for large volume underground neutrino experiments
to detect the neutrino flux from captured inelastic dark matter in the Sun.
The neutrino spectrum has two components: a mono-energetic "spike" from
pion and kaon decays at rest and a broad-spectrum "shoulder" from prompt
primary meson decays. We focus on detecting the shoulder neutrinos
from annihilation of...