Search for slow magnetic monopoles with the NOvA detector on the surface


Acero M. A. , Adamson P., Aliaga L., Alion T., Allakhverdian V., Anfimov N., ...More

PHYSICAL REVIEW D, vol.103, no.1, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 103 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.1103/physrevd.103.012007
  • Title of Journal : PHYSICAL REVIEW D

Abstract

We report a search for a magnetic monopole component of the cosmic-ray flux in a 95-day exposure of the NOvA experiment's Far Detector, a 14 kt segmented liquid scintillator detector designed primarily to observe GeV-scale electron neutrinos. No events consistent with monopoles were observed, setting an upper limit on the flux of 2 x 10(-14) cm(-2) s(-1) sr(-1) at 90% C.L. for monopole speed 6 x 10(-4) < beta < 5 x 10(-3) and mass greater than 5 x 10(8) GeV. Because of NOvA's small overburden of 3 meters-water equivalent, this constraint covers a previously unexplored low-mass region.