Elastic neutrino-electron scattering perspectives at nuclear reactors

Fuente: arXiv
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Main Authors: Delgadillo, Luis A., Liu, Qishan, Singh, Randhir
Format: Preprint
Published: 2026
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author Delgadillo, Luis A.
Liu, Qishan
Singh, Randhir
author_facet Delgadillo, Luis A.
Liu, Qishan
Singh, Randhir
contents The determination of the weak mixing angle, $\sin^2θ_W$, at low momentum transfers remains a powerful test of the Standard Model and its potential new physics extensions. In this paper, we explore some physics opportunities at present and future reactor neutrino experiments through elastic neutrino-electron scattering (E$ν$ES). We assess the expected sensitivity to the weak mixing angle considering the CLOUD, TAO, and DANSS experimental configurations. We find that both CLOUD and TAO may achieve a precision that surpasses the current global fit from reactor experiments, while DANSS alone is expected to surpass the benchmark precision set by TEXONO measurement of the weak mixing angle. Additionally, we derive projected upper limits for the non-standard neutrino interactions (NSI), effective neutrino magnetic moment ($μ_ν$) and translate these into constraints on the neutrino transition magnetic moments ($Λ_i$). Our results demonstrate the physics potential of the E$ν$ES channel at current and upcoming reactor-based neutrino experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2602_21523
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Elastic neutrino-electron scattering perspectives at nuclear reactors
Delgadillo, Luis A.
Liu, Qishan
Singh, Randhir
High Energy Physics - Phenomenology
High Energy Physics - Experiment
The determination of the weak mixing angle, $\sin^2θ_W$, at low momentum transfers remains a powerful test of the Standard Model and its potential new physics extensions. In this paper, we explore some physics opportunities at present and future reactor neutrino experiments through elastic neutrino-electron scattering (E$ν$ES). We assess the expected sensitivity to the weak mixing angle considering the CLOUD, TAO, and DANSS experimental configurations. We find that both CLOUD and TAO may achieve a precision that surpasses the current global fit from reactor experiments, while DANSS alone is expected to surpass the benchmark precision set by TEXONO measurement of the weak mixing angle. Additionally, we derive projected upper limits for the non-standard neutrino interactions (NSI), effective neutrino magnetic moment ($μ_ν$) and translate these into constraints on the neutrino transition magnetic moments ($Λ_i$). Our results demonstrate the physics potential of the E$ν$ES channel at current and upcoming reactor-based neutrino experiments.
title Elastic neutrino-electron scattering perspectives at nuclear reactors
topic High Energy Physics - Phenomenology
High Energy Physics - Experiment
url https://arxiv.org/abs/2602.21523