Physics results from the first COHERENT observation of coherent elastic neutrino-nucleus scattering in argon and their combination with cesium-iodide data

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Physics results from the first COHERENT observation of coherent elastic neutrino-nucleus scattering in argon and their combination with cesium-iodide data

M. Cadeddu, F. Dordei, C. Giunti, Y. F. Li, E. Picciau, and Y. Y. Zhang

Phys. Rev. D 102, 015030 – Published 31 July 2020

Abstract

We present the results on the radius of the neutron distribution in ${}^{40}{Ar}$ , on the low-energy value of the weak mixing angle, and on the electromagnetic properties of neutrinos obtained from the analysis of the coherent neutrino-nucleus elastic scattering data in argon recently published by the COHERENT Collaboration, taking into account proper radiative corrections. We present also the results of the combined analysis of the COHERENT argon and cesium-iodide data for the determination of the low-energy value of the weak mixing angle and the electromagnetic properties of neutrinos. In particular, the COHERENT argon data allow us to improve significantly the only existing laboratory bounds on the electric charge $q_{μ μ}$ of the muon neutrino and on the transition electric charge $q_{μ τ}$ .

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Received 5 May 2020
Accepted 15 July 2020

DOI:https://doi.org/10.1103/PhysRevD.102.015030

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Neutrino interactions Nucleon distribution Nucleus-neutrino interactions

Nuclear PhysicsParticles & Fields

Authors & Affiliations

M. Cadeddu ^1,†, F. Dordei ^1,‡, C. Giunti ^2,§, Y. F. Li ^3,4,∥, E. Picciau^5,6,¶, and Y. Y. Zhang^3,4,*

¹Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Cagliari, Complesso Universitario di Monserrato—S.P. per Sestu Km 0.700, 09042 Monserrato (Cagliari), Italy
²Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Torino, Via P. Giuria 1, I-10125 Torino, Italy
³Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
⁴School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
⁵Dipartimento di Fisica, Università degli Studi di Cagliari, and INFN, Sezione di Cagliari, Complesso Universitario di Monserrato—S.P. per Sestu Km 0.700, 09042 Monserrato (Cagliari), Italy
⁶University of Massachusetts, Amherst, Massachusetts 01003, USA

^*Corresponding author. zhangyiyu@ihep.ac.cn
^†matteo.cadeddu@ca.infn.it
^‡francesca.dordei@cern.ch
^§carlo.giunti@to.infn.it
^∥liyufeng@ihep.ac.cn
^¶emmanuele.picciau@ca.infn.it

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Issue

Vol. 102, Iss. 1 — 1 July 2020

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Physical Review D

covering particles, fields, gravitation, and cosmology