Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles

SHiP Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass of the dark photon mγD and its mixing parameter with the photon, ε. The sensitivity of the SHiP detector is reviewed for dark photons in the mass range between 0.002 and 10 GeV. Different production mechanisms are simulated, with the dark photons decaying to pairs of visible fermions, including both leptons and quarks. Exclusion contours are presented and compared with those of past experiments. The SHiP detector is expected to have a unique sensitivity for mγD ranging between 0.8 and 3.3-0.5+0.2 GeV, and ε2 ranging between 10 - 11 and 10 - 17.

Original languageEnglish
Article number451
JournalEuropean Physical Journal C
Volume81
Issue number5
DOIs
Publication statusPublished - May 2021
Externally publishedYes

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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