COHERENT · 2023

Measurement of Pbnat(νe,Xn) production with a stopped-pion neutrino source

Phys.Rev.D 108 072001 · 10.1103/PhysRevD.108.072001

Measurements

CurrentFlavorTargetTopologyTypeObservablesEnergy
CCνePbInclusivetotalnatPb(nue,Xn) charged-current cross sectionstopped-pion (~30 MeV)

Abstract

Using neutrinos produced at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL), the COHERENT collaboration has studied the Pb(νe\nu_e,Xnn) 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 0.290.16+0.170.29^{+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 1.8σ\sigma. 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.

Citation

@article{COHERENT:2022fic,
  collaboration = "COHERENT",
  title = "{Measurement of <math display="inline"><mrow><mmultiscripts><mrow><mi>Pb</mi></mrow><mprescripts/><none/><mrow><mi>n</mi><mi>a</mi><mi>t</mi></mrow></mmultiscripts><mo stretchy="false">(</mo><msub><mrow><mi>ν</mi></mrow><mrow><mi>e</mi></mrow></msub><mo>,</mo><mi mathvariant="normal">X</mi><mi>n</mi><mo stretchy="false">)</mo></mrow></math> production with a stopped-pion neutrino source}",
  eprint = "2212.11295",
  doi = "10.1103/PhysRevD.108.072001",
  journal = "Phys.Rev.D",
  volume = "108",
  pages = "072001",
  year = "2023",
}