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19 April 2024

» arxiv » 1909.5913

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First Constraint on Coherent Elastic Neutrino-Nucleus Scattering in Argon
COHERENT Collaboration ; D. Akimov ; J. B. Albert ; P. An ; C. Awe ; P. S. Barbeau ; B. Becker ; V. Belov ; M. A. Blackston ; A. Bolozdynya ; B. Cabrera-Palmer ; M. Cervantes ; J. I. Collar ; R. L. Cooper ; J. Daughhetee ; M. del Valle Coello ; J. A. Detwiler ; M. D'Onofrio ; Y. Efremenko ; E. M. Erkela ; S. R. Elliott ; L. Fabris ; M. Febbraro ; W. Fox ; A. Galindo-Uribarri ; M. P. Green ; K. S. Hansen ; M. R. Heath ; S. Hedges ; T. Johnson ; M. Kaemingk ; L. J. Kaufman ; A. Khromov ; A. Konovalov ; E. Kozlova ; A. Kumpan ; L. Li ; J. T. Librande ; J. M. Link ; J. Liu ; K. Mann ; D. M. Markoff ; H. Moreno ; P. E. Mueller ; J. Newby ; D. S. Parno ; S. Penttila ; D. Pershey ; D. Radford ; R. Rapp ; H. Ray ; J. Raybern ; O. Razuvaeva ; D. Reyna ; G. C. Rich ; D. Rudik ; J. Runge ; D. J. Salvat ; K. Scholberg ; A. Shakirov ; G. Simakov ; G. Sinev ; W. M. Snow ; V. Sosnovtsev ; B. Suh ; R. Tayloe ; K. Tellez-Giron-Flores ; R. T. Thornton ; I. Tolstukhin ; J. Vanderwerp ; R. L. Varner ; C. J. Virtue ; G. Visser ; C. Wiseman ; T. Wongjirad ; J. Yang ; Y.-R. Yen ; J. Yoo ; C.-H. Yu ; J. Zettlemoyer ;
Date:	12 Sep 2019
Abstract:	Coherent elastic neutrino-nucleus scattering (CEvNS) is the dominant neutrino scattering channel for neutrinos of energy $E_ u < 100$ MeV. We report a limit for this process using data collected in an engineering run of the 29 kg CENNS-10 liquid argon detector located 27.5 m from the Oak Ridge National Laboratory Spallation Neutron Source (SNS) Hg target with $4.2 imes 10^{22}$ protons on target. The dataset yielded $< 7.4$ observed CEvNS events implying a cross section for the process, averaged over the SNS pion decay-at-rest flux, of $<3.4 imes 10^{-39}$ cm$^{2}$, a limit within twice the Standard Model prediction. This is the first limit on CEvNS from an argon nucleus and confirms the earlier CsI non-standard neutrino interaction constraints from the collaboration. This run demonstrated the feasibility of the ongoing experimental effort to detect CEvNS with liquid argon.
Source:	arXiv, 1909.5913
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