First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon
Abstract
We report the first measurement of coherent elastic neutrino-nucleus scattering (\cevns) on argon using a liquid argon detector at the Oak Ridge National Laboratory Spallation Neutron Source. Two independent analyses prefer \cevns over the background-only null hypothesis with greater than significance. The measured cross section, averaged over the incident neutrino flux, is (2.2 0.7) 10 cm -- consistent with the standard model prediction. The neutron-number dependence of this result, together with that from our previous measurement on CsI, confirms the existence of the \cevns process and provides improved constraints on non-standard neutrino interactions.
Keywords
Cite
@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}
}
Comments
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