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Scientific article
Open access
English

Sensitivity of the SHiP experiment to light dark matter

ContributorsSHiP Collaboration
Published inThe journal of high energy physics, vol. 2021, no. 4, 199
Publication date2021
First online date2021-04-20
Abstract

Dark matter is a well-established theoretical addition to the Standard Model supported by many observations in modern astrophysics and cosmology. In this context, the existence of weakly interacting massive particles represents an appealing solution to the observed thermal relic in the Universe. Indeed, a large experimental campaign is ongoing for the detection of such particles in the sub-GeV mass range. Adopting the benchmark scenario for light dark matter particles produced in the decay of a dark photon, with α$_{D}$ = 0.1 and m$_{A′}$ = 3m$_{χ}$, we study the potential of the SHiP experiment to detect such elusive particles through its Scattering and Neutrino detector (SND). In its 5-years run, corresponding to 2 · 10$^{20}$ protons on target from the CERN SPS, we find that SHiP will improve the current limits in the mass range for the dark matter from about 1 MeV to 300 MeV. In particular, we show that SHiP will probe the thermal target for Majorana candidates in most of this mass window and even reach the Pseudo-Dirac thermal relic.

eng
Keywords
  • Beyond Standard Model
  • Dark matter
  • Fixed target experiments
  • Neutrino: detector
  • Dark matter: mass
  • Thermal
  • Cosmological model
  • Sensitivity
  • WIMP nucleus: scattering
  • Dark matter: scattering
  • Benchmark
  • CERN SPS
  • Majorana
  • Photon: hidden sector
  • WIMP: dark matter
  • SND
  • Proposed experiment
Citation (ISO format)
SHiP Collaboration. Sensitivity of the SHiP experiment to light dark matter. In: The journal of high energy physics, 2021, vol. 2021, n° 4, p. 199. doi: 10.1007/jhep04(2021)199
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ISSN of the journal1029-8479
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