Measurement of Pbnat(νe,Xn

P. An, C. Awe, P. S. Barbeau, B. Becker, S. W. Belling, V. Belov, I. Bernardi, 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. Hakenmüller, 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, Kulwinder Singh 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, James A. 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

Physical review（2023）

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摘要

Using neutrinos produced at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL), the COHERENT collaboration has studied the Pb(νe,Xn) 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 0.29−0.16+0.17 times that predicted by the MARLEY event generator using experimentally-measured Gamow-Teller strength distributions, consistent with no NIN events at 1.8σ. 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.2 MoreReceived 29 December 2022Revised 13 April 2023Accepted 1 September 2023DOI:https://doi.org/10.1103/PhysRevD.108.072001Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.Published by the American Physical SocietyPhysics Subject Headings (PhySH)Research AreasElectroweak interactions in nuclear physicsInelastic scattering reactionsNucleus-neutrino interactionsPhysical SystemsNeutrinosNeutronsProperties190 ≤ A ≤ 219TechniquesNeutrino detectionScintillatorsParticles & FieldsNuclear Physics

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