The process of neutral-current coherent elastic neutrino-nucleus scattering, consistent with the Standard Model (SM) expectation, has been recently measured by COHERENT experiment at Spallation Neutron Source. On basis observed signal and our nuclear calculations for relevant Cs I isotopes, extracted constraints on both conventional exotic neutrino physics are updated. present study concentrates various SM extensions involving vector tensor nonstandard interactions as well electromagnetic...

We explore the potential of current and next generation coherent elastic neutrino-nucleus scattering (CE$\nu$NS) experiments in probing neutrino electromagnetic interactions. On basis a thorough statistical analysis, we determine sensitivities on each component Majorana transition magnetic moment (TMM), $\left \vert \Lambda_i \right \vert$, that follow from low-energy experiments. derive sensitivity to TMM first CE$\nu$NS measurement by COHERENT experiment, at Spallation Neutron Source. also...

A bstract The observation of coherent elastic neutrino nucleus scattering has opened the window to many physics opportunities. This process been measured by COHERENT Collaboration using two different targets, first CsI and then argon. Recently, updated data analysis with a higher statistics an improved understanding systematics. Here we perform detailed statistical full combine it previous argon result. We discuss vast array implications, from tests Standard Model new probes. In our analyses...

Next generation direct dark matter detection experiments are favorable facilities to probe neutrino properties and light mediators beyond the Standard Model. We explore implications of recent data reported by LUX-ZEPLIN (LZ) XENONnT collaborations on electromagnetic interactions generalized (NGIs). show that places most stringent upper limits effective transition magnetic moment (of order few ×10−12μB) as well constraints millicharge ∼10−13e)–competitive LZ–and improved about one magnitude...

Solar neutrinos induce elastic neutrino-electron scattering in dark matter direct detection experiments, resulting detectable event rates at current facilities. We analyze recent data from the XENONnT, LUX-ZEPLIN, and PandaX-4T experiments we derive stringent constraints on several $U(1)'$ extensions of Standard Model, accommodating new interactions. provide bounds relevant coupling mass light vector mediators for a variety models, including anomaly-free $B-L$ model, lepton flavor-dependent...

Abstract We consider a scenario in which dark matter particles are accelerated to semi-relativistic velocities through their scattering with the Diffuse Supernova Neutrino Background. Such subdominant, but more energetic component can be then detected via its on electrons and nucleons inside direct detection experiments. This opens up possibility probe sub-GeV mass range, region of parameter space that is usually not accessible at such facilities. analyze current data from XENONnT LUX-ZEPLIN...

Coherent elastic neutrino-nucleus (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>CE</a:mi><a:mi>ν</a:mi><a:mi>NS</a:mi></a:mrow></a:math>) and neutrino-electron scattering (<c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:mi mathvariant="normal">E</c:mi><c:mi>ν</c:mi><c:mi>ES</c:mi></c:mrow></c:math>) data are exploited to constrain “chiral” <f:math xmlns:f="http://www.w3.org/1998/Math/MathML"...

We investigate the impact of a fourth sterile neutrino at reactor and Spallation Neutron Source detectors. Specifically, we explore discovery potential TEXONO COHERENT experiments to subleading effects through measurement coherent elastic neutrino-nucleus scattering event rate. Our dedicated ${\ensuremath{\chi}}^{2}$-sensitivity analysis employs realistic nuclear structure calculations adequate for high purity sub-keV threshold Germanium

Motivated by the recent observation of coherent elastic neutrino-nucleus scattering (CE$\nu $NS) at COHERENT experiment, our goal is to explore its potential in probing important nuclear structure parameters. We show that data offers unique opportunities investigate neutron form factor. Our present calculations are based on deformed Shell Model (DSM) method which leads a better fit CE$\nu $NS data, as compared known phenomenological factors such Helm-type, symmetrized Fermi and...

Majorana neutrino electromagnetic properties are studied through neutral current coherent neutrino-nucleus scattering. We focus on the potential of recently planned COHERENT experiment at Spallation Neutron Source to probe muon-neutrino magnetic moments. The resulting sensitivities determined basis a chi^2 analysis employing realistic nuclear structure calculations in context quasi-particle random phase approximation. find that they can improve existing limits by half an order magnitude. In...

Recently the XENON1T collaboration has released new results on searches for physics in low-energy electronic recoils. The data shows an excess over background tail, particularly pronounced at about 2−3keV. With exposure of 0.65 tonne-year, large detection efficiency and energy resolution, detector is sensitive as well to solar neutrino backgrounds, with most prominent contribution given by pp neutrinos. We investigate whether such signal can be explained terms interactions leptons mediated a...

We review current standard and non-standard neutrino physics probes that are based on nuclear measurements. pay special attention the discussion of prospects to extract new at prominent rare event measurements looking for neutrino-nucleus scattering, as coherent elastic scattering may involve lepton flavour violation (LFV) in neutral currents (NC). For latter processes several appreciably sensitive experiments, like COHERENT, MINER, CONUS, TEXONO, RED100 others, using promising target nuclei...

We determine the sensitivities of short-baseline coherent elastic neutrino-nucleus scattering ($\mathrm{CE}\ensuremath{\nu}\mathrm{NS}$) experiments using a pion decay at rest neutrino source as probe for nonunitarity in lepton sector, expected low-scale type-I seesaw schemes. also identify best configuration probing light sterile neutrinos future ton-scale liquid argon $\mathrm{CE}\ensuremath{\nu}\mathrm{NS}$ experiments, estimating projected on parameters. Possible experimental setups...

A bstract Sterile neutrinos with keV-MeV masses and non-zero transition magnetic moments can be probed through low-energy nuclear or electron recoil measurements. Here we determine the sensitivities of current future searches, showing how they probe a previously unexplored parameter region. Future coherent elastic neutrino-nucleus scattering (CE ν NS) neutrino-electron (E ES) experiments using monochromatic 51 Cr source fully region indicated by recent XENON1T excess.

In this work, we explore<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi>ν</mml:mi></mml:mrow></mml:math>-nucleus processes from a nuclear theory point of view and obtain results with high confidence level based on accurate structure cross sections calculations. Besides sections, the present study includes simulated signals expected to be recorded by detectors differential event rates as well total number events predicted measured. Our original calculations...

The recent puzzling results of the XENON1T collaboration at few keV electronic recoils could be due to scattering solar neutrinos endowed with finite Majorana transition magnetic moments (TMMs). Within such general formalism, we find that observed excess in data agrees well this interpretation. required TMM strengths lie within limits set by current experiments, as Borexino, specially when one takes into account a possible tritium contamination.

Event detection rates for WIMP-nucleus interactions are calculated <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:msup><mml:mrow><mml:mo> </mml:mo></mml:mrow><mml:mrow><mml:mn mathvariant="normal">71</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Ga, id="M2"><mml:mrow><mml:msup><mml:mrow><mml:mo> mathvariant="normal">73</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>Ge, id="M3"><mml:mrow><mml:msup><mml:mrow><mml:mo>...

Abstract We reconsider the discovery limit of multi-ton direct detection dark matter experiments in light recent measurements coherent elastic neutrino-nucleus scattering process. Assuming cross section to be a parameter entirely determined by data, rather than using its Standard Model prediction, we use COHERENT CsI and LAr data sets determine WIMP limits. Being based on data-driven approach, results are thus free from theoretical assumptions fall within mass regions where XENONnT DARWIN...

Searches for neutrino magnetic moments/transitions in low energy scattering experiments are sensitive to effective couplings, which an intricate function of the Hamiltonian parameters. We study parameter space dependence these couplings Majorana (transitions) and Dirac (moments) cases, as well impact current most stringent experimental upper limits on fundamental In case we find that reactor, short-baseline, solar neutrinos, $CP$ violation can be understood a measurement vectors...

Recently an improved quenching factor (QF) measurement for low-energy nuclear recoils in CsI[Na] has been reported by the COHERENT Collaboration. The new energy-dependent QF is characterized a reduced systematic uncertainty and leads to better agreement between experimental data Standard Model (SM) expectation. In this work, we report updated constraints on parameters that describe process of coherent elastic neutrino-nucleus scattering within beyond SM, also present how affects their interpretation.

A bstract Reactor neutrino experiments provide a rich environment for the study of axionlike particles (ALPs). Using intense photon flux produced in nuclear reactor core, these have potential to probe ALPs with masses below 10 MeV. We explore feasibility searches by considering through Primakoff and Compton-like processes as well transitions. These can subsequently interact material nearby detector via inverse scatterings, axio-electric absorption, or they decay into electron-positron pairs....

The Dresden-II reactor experiment has recently reported a suggestive evidence for the observation of coherent elastic neutrino-nucleus scattering, using germanium detector. Given low recoil energy threshold, these data are particularly interesting low-energy determination weak mixing angle and study new physics leading to spectral distortions at momentum transfer. Using two hypotheses quenching factor, we impact on: (i) renormalization scale $\sim 10\,\text{MeV}$, (ii) neutrino generalized...

A bstract We explore the prospects of constraining general non standard interactions involving light mediators through elastic neutrino-electron scattering events at DUNE Near Detector (ND). furthermore consider special cases vector in motivated models such as U(1) B−L , $$ \textrm{U}{(1)}_{L_{\mu }-{L}_{\tau }} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>U</mml:mi> <mml:msub> <mml:mfenced> <mml:mn>1</mml:mn> </mml:mfenced> <mml:mrow> <mml:mi>L</mml:mi>...

We consider the possible production of a new MeV-scale fermion at COHERENT experiment. The fermion, belonging to dark sector, can be produced through up-scattering process neutrinos off nuclei and electrons detector material, via exchange light vector or scalar mediator. perform detailed statistical analysis combined CsI LAr datasets obtain up-to-date constraints on couplings masses mediators. finally briefly comment about stability fermion.

A bstract We investigate the possible production of a MeV-scale sterile fermion through up-scattering neutrinos on nuclei and atomic electrons at different facilities. consider phenomenological model that adds new to particle content Standard Model we allow for all Lorentz-invariant non-derivative interactions (scalar, pseudoscalar, vector, axial-vector tensor) with first-generation quarks. first explore sensitivity DUNE experiment this scenario, by simulating elastic neutrino-electron...