氩上相干弹性中微子-核散射的首次测量
核实验
2021-02-17 v7 高能物理 - 实验
摘要
我们报道了在橡树岭国家实验室散裂中子源使用液氩探测器对氩上相干弹性中微子-核散射（\cevns）的首次测量。两项独立分析均以大于的显著性偏好\cevns而非仅有本底的零假设。测得截面在入射中微子通量上平均值为(2.2 0.7) 10 cm——与标准模型预言一致。该结果的 neutron-number 依赖性，连同我们先前在CsI上的测量结果，证实了\cevns过程的存在，并对非标准的中微子相互作用给出了更严格的约束。
关键词
引用
@article{arxiv.2003.10630,
title = {First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon},
author = {COHERENT Collaboration and D. Akimov and J. B. Albert and P. An and C. Awe and P. S. Barbeau and B. Becker and V. Belov and M. A. Blackston and L. Blokland and A. Bolozdynya and B. Cabrera-Palmer and N. Chen and D. Chernyak and E. Conley and R. L. Cooper and J. Daughhetee and M. del Valle Coello and J. A. Detwiler and M. R. Durand and Y. Efremenko and S. R. Elliott and L. Fabris and M. Febbraro and W. Fox and A. Galindo-Uribarri and M. P. Green and K. S. Hansen and M. R. Heath and S. Hedges and M. Hughes and T. Johnson and M. Kaemingk and L. J. Kaufman and A. Khromov and A. Konovalov and E. Kozlova and A. Kumpan and L. Li and J. T. Librande and J. M. Link and J. Liu and K. Mann and D. M. Markoff and O. McGoldrick and H. Moreno and P. E. Mueller and J. Newby and D. S. Parno and S. Penttila and D. Pershey and D. Radford and R. Rapp and H. Ray and J. Raybern and O. Razuvaeva and D. Reyna and G. C. Rich and D. Rudik and J. Runge and D. J. Salvat and K. Scholberg and A. Shakirov and G. Simakov and G. Sinev and W. M. Snow and V. Sosnovtsev and B. Suh and R. Tayloe and K. Tellez-Giron-Flores and R. T. Thornton and I. Tolstukhin and J. Vanderwerp and R. L. Varner and C. J. Virtue and G. Visser and C. Wiseman and T. Wongjirad and J. Yang and Y. -R. Yen and J. Yoo and C. -H. Yu and J. Zettlemoyer},
journal= {arXiv preprint arXiv:2003.10630},
year = {2021}
}
备注
8 pages, 5 figures with 2 pages, 6 figures supplementary material V3: fixes to figs 3,4 V4: fix typo in table 1, V5: replaced missing appendix, V6: fix Eq 1, new fig 3, V7 final version, updated with final revisions