Author:
Akimov D.,An P.,Awe C.,Barbeau P.S.,Becker B.,Belov V.,Bernardi I.,Blackston M.A.,Bock C.,Bolozdynya A.,Browning J.,Cabrera-Palmer B.,Chernyak D.,Conley E.,Daughhetee J.,Detwiler J.,Ding K.,Durand M.R.,Efremenko Y.,Elliott S.R.,Fabris L.,Febbraro M.,Gallo Rosso A.,Galindo-Uribarri A.,Green M.P.,Heath M.R.,Hedges S.,Hoang D.,Hughes M.,Johnson T.,Khromov A.,Konovalov A.,Kozlova E.,Kumpan A.,Li L.,Link J.M.,Liu J.,Mann K.,Markoff D.M.,Mastroberti J.,Melikyan Y.A.,Mueller P.E.,Newby J.,Parno D.S.,Penttila S.I.,Pershey D.,Rapp R.,Ray H.,Raybern J.,Razuvaeva O.,Reyna D.,Rich G.C.,Ross J.,Rudik D.,Runge J.,Salvat D.J.,Salyapongse A.M.,Scholberg K.,Shakirov A.,Simakov G.,Sinev G.,Snow W.M.,Sosnovtsev V.,Suh B.,Tayloe R.,Tellez-Giron-Flores K.,Tolstukhin I.,Ujah E.,Vanderwerp J.,Varner R.L.,Virtue C.J.,Visser G.,Wongjirad T.,Yen Y.-R.,Yoo J.,Yu C.-H.,Zettlemoyer J.
Abstract
Abstract
We present results of several measurements of CsI[Na]
scintillation response to 3–60 keV energy nuclear recoils
performed by the COHERENT collaboration using tagged neutron elastic
scattering experiments and an endpoint technique. Earlier results,
used to estimate the coherent elastic neutrino-nucleus scattering
(CEvNS) event rate for the first observation of this process
achieved by COHERENT at the Spallation Neutron Source (SNS), have
been reassessed. We discuss corrections for the identified
systematic effects and update the respective uncertainty values. The
impact of updated results on future precision tests of CEvNS is
estimated. We scrutinize potential systematic effects that could
affect each measurement. In particular we confirm the response of
the H11934-200 Hamamatsu photomultiplier tube (PMT) used for the
measurements presented in this study to be linear in the relevant
signal scale region.
Subject
Mathematical Physics,Instrumentation