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arXiv · 2109.11049

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·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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Abstract

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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COHERENT Collaboration, D. Akimov, P. An, C. Awe, P. S. Barbeau, B. Becker, V. Belov, I. Bernardi, 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. 2021-09-22. Simulating the neutrino flux from the Spallation Neutron Source for the COHERENT experiment. https://arxiv.org/abs/2109.11049

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