$ {}^{nat} $ pb（$ν_e$，x $ n $）生产的测量

论文标题

$ {}^{nat} $ pb（$ν_e$，x $ n $）生产的测量

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

论文作者

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

论文摘要

使用在Oak Ridge国家实验室（ORNL）的Spallation Neutron Source（SNS）中生产的中微子，连贯的合作研究了PB（$ν_e$，X $ n $）过程，并使用了铅中微子诱导的中微子诱导的探测器（NIN）检测器。该检测器的数据与先前收集的有关此过程的相干数据共同拟合。对两个数据集的组合分析产生的横截面为$ 0.29^{+0.17} _ { - 0.16} $倍，使用实验测量的Gamow-Teller强度分布，Marley事件生成器预测的timerm timers，一致，没有NIN事件在1.8 $σ$中。这是第一个不弹性中微子核过程相干研究，其中几种计划利用SNS产生的低能中微子的高通量。

Using neutrinos produced at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL), the COHERENT collaboration has studied the Pb($ν_e$,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$σ$. 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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