COHERENT 2018 at the Spallation Neutron Source

Abstract

The primary goal of the COHERENT collaboration is to measure and study coherent elastic neutrino-nucleus scattering (CEvNS) using the high-power, few-tens-of-MeV, pulsed source of neutrinos provided by the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL). The COHERENT collaboration reported the first detection of CEvNS [Akimov:2017ade] using a CsI[Na] detector. At present the collaboration is deploying four detector technologies: a CsI[Na] scintillating crystal, p-type point-contact germanium detectors, single-phase liquid argon, and NaI[Tl] crystals. All detectors are located in the neutron-quiet basement of the SNS target building at distances 20-30 m from the SNS neutrino source. The simultaneous measurement in all four COHERENT detector subsystems will test the $N^2$ dependence of the cross section and search for new physics. In addition, COHERENT is measuring neutrino-induced neutrons from charged- and neutral-current neutrino interactions on nuclei in shielding materials, which represent a non-negligible background for CEvNS as well as being of intrinsic interest. The Collaboration is planning as well to look for charged-current interactions of relevance to supernova and weak-interaction physics. This document describes concisely the COHERENT physics motivations, sensitivity, and next plans for measurements at the SNS to be accomplished on a few-year timescale.

22 pages, 14 figures

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Cited by in corpus (21)

• Neutrino Non-Standard Interactions: A Status Report
• Constraining nuclear physics parameters with current and future COHERENT data
• Recent probes of standard and non-standard neutrino physics with nuclei
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• The physics potential of a reactor neutrino experiment with Skipper CCDs: Measuring the weak mixing angle
• COHERENT constraints after the COHERENT-2020 quenching factor measurement
• First ground-level laboratory test of the two-phase xenon emission detector RED-100
• Neutrino physics with dark matter detectors
• Probing new neutral gauge bosons with CEvNS and neutrino-electron scattering
• New production channels for light dark matter in hadronic showers
• Pulseshape discrimination against low-energy Ar-39 beta decays in liquid argon with 4.5 tonne-years of DEAP-3600 data
• Nuclear de-excitations in low-energy charged-current ${\nu }_e$ scattering on ${}^{40}$Ar
• The liquid-argon scintillation pulseshape in DEAP-3600
• A D${}_2$O detector for flux normalization of a pion decay-at-rest neutrino source
• Elastic and inelastic scattering of neutrinos and weakly interacting massive particles on nuclei
• Constraining Sterile Neutrino Cosmology with Terrestrial Oscillation Experiments
• Opportunities for probing $U(1{)}_{T3R}$ with light mediators
• The Low-Radioactivity Underground Argon Workshop: A workshop synopsis
• Simulating low-energy neutrino interactions with MARLEY
• Coherent elastic neutrino-nucleus scattering (CE$\nu$NS) event rates for Ge, Zn and Si detector materials
• COHERENT Plans for D${}_2$O at the Spallation Neutron Source