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IOP Publishing, Reports on Progress in Physics, 12(79), p. 124201, 2016

DOI: 10.1088/0034-4885/79/12/124201

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A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case

Journal article published in 2015 by André de Gouvêa, Sergey Alekhin, Patrick deNiverville, Wolfgang Altmannshofer, Takehiko Asaka, Brian Batell, Fedor Bezrukov ORCID, Kyrylo Bondarenko ORCID, Alexey Boyarsky, Ki-Young Choi, Cristóbal Corral, Nathaniel Craig, David Curtin, Sacha Davidson, Stefano Dell'Oro and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

SeriesInformation ; Reports on progress in physics 79(12), 124201(2016). doi:10.1088/0034-4885/79/12/124201 ; Abstract ; This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP (search for hidden particles) experiment is intended to hunt for new physics in the largely unexplored domain of very weakly interacting particles with masses below the Fermi scale, inaccessible to the LHC experiments, and to study tau neutrino physics. The same proton beam setup can be used later to look for decays of tau-leptons with lepton flavour number non-conservation, →τμ3 and to search for weakly-interacting sub-GeV dark matter candidates. We discuss the evidence for physics beyond the standard model and describe interactions between new particles and four different portals—scalars, vectors, fermions or axion-like particles. We discuss motivations for different models, manifesting themselves via these interactions, and how they can be probed with the SHiP experiment and present several case studies. The prospects to search for relatively light SUSY and composite particles at SHiP are also discussed. We demonstrate that the SHiP experiment has a unique potential to discover new physics and can directly probe a number of solutions of beyond the standard model puzzles, such as neutrino masses, baryon asymmetry of the Universe, dark matter, and inflation. ; Other ; Published by IOP Publ., Bristol