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arxiv: 2109.11049 · v2 · pith:KY63LOJKnew · submitted 2021-09-22 · ✦ hep-ex · nucl-ex

Simulating the neutrino flux from the Spallation Neutron Source for the COHERENT experiment

COHERENT Collaboration , D. Akimov , P. An , C. Awe , P.S. Barbeau , B. Becker , V. Belov , I. Bernardi
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M.A. Blackston C. Bock A. Bolozdynya J. Browning B. Cabrera-Palmer D. Chernyak E. Conley J. Daughhetee J. Detwiler K. Ding M.R. Durand Y. Efremenko S.R. Elliott L. Fabris M. Febbraro J. Galambos A. Gallo Rosso A. Galindo-Uribarri M.P. Green M.R. Heath S. Hedges D. Hoang M. Hughes E. Iverson T. Johnson A. Khromov A. Konovalov E. Kozlova A. Kumpan L. Li J.M. Link J. Liu K. Mann D.M. Markoff J. Mastroberti M. McIntyre P.E. Mueller J. Newby D.S. Parno S.I. Penttila D. Pershey R. Rapp H. Ray J. Raybern O. Razuvaeva D. Reyna G.C. Rich D. Rimal J. Ross D. Rudik J. Runge D.J. Salvat A.M. Salyapongse K. Scholberg A. Shakirov G. Simakov G. Sinev W.M. Snow V. Sosnovstsev B. Suh R. Tayloe K. Tellez-Giron-Flores I. Tolstukhin S. Trotter E. Ujah J. Vanderwerp R.L. Varner C.J. Virtue G. Visser T. Wongjirad Y.-R. Yen J. Yoo C.-H. Yu J. Zettlemoyer S. Zhang
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classification ✦ hep-ex nucl-ex
keywords sourcecoherentcalculationfluxneutrinoneutronproductionpulsed
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The Spallation Neutron Source (SNS) at Oak Ridge National Laboratory is a pulsed source of neutrons and, as a byproduct of this operation, an intense source of pulsed neutrinos via stopped-pion decay. The COHERENT collaboration uses this source to investigate coherent elastic neutrino-nucleus scattering and other physics with a suite of detectors. This work includes a description of our Geant4 simulation of neutrino production at the SNS and the flux calculation which informs the COHERENT studies. We estimate the uncertainty of this calculation at about 10% based on validation against available low-energy pion production data.

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