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Sensitivity of the SHiP experiment to light dark matter

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Ahdida C., Akmete A., Albanese R., Alexandrov A., Anokhina A., Aoki S., Arduini G., Atkin E., Azorskiy N., Back J. J., Bagulya A., Baaltasar Dos Santos F., Baranov A., Bardou F., Barker G. J., Battistin M., Bauche J., Bay A., Bayliss V., Bencivenni G., Berdnikov A. Y., Berdnikov Y. A., Bertani M., Betancourt C., et al. ,
Project Search for hidden particles: exploring the high intensity frontier
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Original article (peer-reviewed)

Journal Journal of High Energy Physics
Volume (Issue) 2021(4)
Page(s) 199 - 199
Title of proceedings Journal of High Energy Physics
DOI 10.1007/jhep04(2021)199

Open Access

URL http://doi.org/10.1007/JHEP04(2021)199
Type of Open Access Publisher (Gold Open Access)

Abstract

A bstract 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 αD = 0 . 1 and mA ′ = 3 mχ , 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.
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