Low-Energy Neutrino-Nucleus Scattering and New Physics

TL;DR

This paper discusses how low-energy neutrino interactions, especially coherent elastic neutrino-nucleus scattering (CEvNS), can be used to test the Standard Model and search for new physics, with estimates for experimental event rates.

Contribution

It provides estimates of recoil event rates in liquid argon detectors for CEvNS and explores the impact of neutrino magnetic moments on these rates.

Findings

Estimated recoil event rates for current and upcoming experiments.

Analysis of neutrino magnetic moment effects on event rates.

Highlighting CEvNS as a promising probe for new physics.

Abstract

The interactions of low-energy neutrinos with nuclei provide a unique window to explore various Standard Model (SM) and Beyond the Standard Model (BSM) processes. In particular, the recent observation of coherent elastic neutrino-nucleus scattering (CEvNS), predicted over five decades ago, has generated significant interest across disciplines. With its high cross section and suitability for compact detectors, particularly with stopped pion neutrinos, CEvNS offers a powerful probe for light, weakly coupled new physics. Ongoing global experimental efforts now aim to leverage CEvNS to test SM predictions and search for BSM signals, where deviations in event rates or spectra could reveal new physics. We present here an estimate of the number of recoil events obtained from CEvNS using the current and upcoming liquid argon based experiments. Furthermore, the event rate due to the inclusion of neutrino magnetic moment is also discussed.