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Measurement of scintillation response of CsI[Na] to low-energy nuclear recoils by COHERENT

Publication ,  Journal Article
Akimov, D; An, P; Awe, C; Barbeau, PS; Becker, B; Belov, V; Bernardi, I; Blackston, MA; Bock, C; Bolozdynya, A; Browning, J; Cabrera-Palmer, B ...
November 3, 2021
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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.

Duke Scholars

Phillip S. Barbeau
Author Phillip S. Barbeau Physics
Kate Scholberg
Author Kate Scholberg Physics

Publication Date

November 3, 2021
 

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Akimov, D., An, P., Awe, C., Barbeau, P. S., Becker, B., Belov, V., … Zettlemoyer, J. (2021). Measurement of scintillation response of CsI[Na] to low-energy nuclear recoils by COHERENT.
Akimov, D., P. An, C. Awe, P. S. Barbeau, B. Becker, V. Belov, I. Bernardi, et al. “Measurement of scintillation response of CsI[Na] to low-energy nuclear recoils by COHERENT,” November 3, 2021.
Akimov D, An P, Awe C, Barbeau PS, Becker B, Belov V, et al. Measurement of scintillation response of CsI[Na] to low-energy nuclear recoils by COHERENT. 2021 Nov 3;
Akimov D, An P, Awe C, Barbeau PS, Becker B, Belov V, Bernardi I, Blackston MA, Bock C, Bolozdynya A, Browning J, Cabrera-Palmer B, Chernyak D, Conley E, Daughhetee J, Detwiler J, Ding K, Durand MR, Efremenko Y, Elliott SR, Fabris L, Febbraro M, Rosso AG, Galindo-Uribarri A, Green MP, Heath MR, Hedges S, Hoang D, Hughes M, Johnson T, Khromov A, Konovalov A, Kozlova E, Kumpan A, Li L, Link JM, Liu J, Mann K, Markoff DM, Mastroberti J, Melikyan YA, Mueller PE, Newby J, Parno DS, Penttila SI, Pershey D, Rapp R, Ray H, Raybern J, Razuvaeva O, Reyna D, Rich GC, Ross J, Rudik D, Runge J, Salvat DJ, Salyapongse AM, Scholberg K, Shakirov A, Simakov G, Sinev G, Snow WM, Sosnovstsev V, Suh B, Tayloe R, Tellez-Giron-Flores K, Tolstukhin I, Ujah E, Vanderwerp J, Varner RL, Virtue CJ, Visser G, Wongjirad T, Yen Y-R, Yoo J, Yu C-H, Zettlemoyer J. Measurement of scintillation response of CsI[Na] to low-energy nuclear recoils by COHERENT. 2021 Nov 3;

Publication Date

November 3, 2021