Measurement of ${}^{nat}$Pb($\nu_e$,X$n$) production with a stopped-pion neutrino source

A. Bolozdynya; A. Brown; A. Galindo-Uribarri; A. Gallo Rosso; A. Khromov; A. Konovalov; A. Kumpan; A. Major; A.M. Salyapongse; A. Shakirov

Measurement of {}^(nat)Pb(ν_e,Xn) production with a stopped-pion neutrino source

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arxiv 2212.11295 v2 pith:GJNBRSNH submitted 2022-12-21 hep-ex nucl-ex

Measurement of {}^(nat)Pb(ν_e,Xn) production with a stopped-pion neutrino source

COHERENT Collaboration , P. An , C. Awe , P.S. Barbeau , B. Becker , S.W. Belling , V. Belov , I. Bernardi

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C. Bock A. Bolozdynya R. Bouabid A. Brown J. Browning B. Cabrera-Palmer M. Cervantes E. Conley J. Daughhetee J. Detwiler K. Ding M.R. Durand Y. Efremenko S.R. Elliott L. Fabris M. Febbraro A. Gallo Rosso A. Galindo-Uribarri M.P. Green J. Hakenm\"uller M.R. Heath S. Hedges M. Hughes B.A. Johnson T. Johnson A. Khromov A. Konovalov E. Kozlova A. Kumpan O. Kyzylova L. Li J.M. Link J. Liu A. Major K. Mann D.M. Markoff J. Mastroberti J. Mattingly K. Miller P.E. Mueller J. Newby D.S. Parno S.I. Penttila D. Pershey C.G. Prior R. Rapp H. Ray J. Raybern O. Razuvaeva D. Reyna G.C. Rich J. Ross D. Rudik J. Runge D.J. Salvat A.M. Salyapongse J. Sander K. Scholberg A. Shakirov G. Simakov G. Sinev W.M. Snow V. Sosnovtsev T. Subedi B. Suh R. Tayloe K. Tellez-Giron-Flores E. Ujah J. Vanderwerp E.E. van Nieuwenhuizen R.L. Varner C.J. Virtue G. Visser K. Walkup E.M. Ward T. Wongjirad J. Yoo C.-H. Yu J. Zettlemoyer

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Using neutrinos produced at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL), the COHERENT collaboration has studied the Pb($\nu_e$,X$n$) process with a lead neutrino-induced-neutron (NIN) detector. Data from this detector are fit jointly with previously collected COHERENT data on this process. A combined analysis of the two datasets yields a cross section that is $0.29^{+0.17}_{-0.16}$ times that predicted by the MARLEY event generator using experimentally-measured Gamow-Teller strength distributions, consistent with no NIN events at 1.8$\sigma$. This is the first inelastic neutrino-nucleus process COHERENT has studied, among several planned exploiting the high flux of low-energy neutrinos produced at the SNS.

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