Abstract
The SHiP (Search for Hidden Particles) experiment has been recently proposed at CERN to be operated in beam dump mode at the SPS, with the aim of investigating the Hidden Sector searching for long-lived particles in the GeV mass range. The beam dump will be a copious source of hidden particles, together with active neutrinos of all flavours. The SHiP detector is designed to detect feebly interacting particles and to perform precision studies of neutrino and anti-neutrino interactions, too. In five years run 2 × 1020 protons on target will be delivered, leading to the first direct observation of tau anti-neutrinos. The and vτ deep-inelastic scattering cross-sections will be evaluated with a statistics a thousand times larger than currently available. The F 4 and F 5 structure functions, never measured so far, will be also extracted and charm physics studies will be realised with improved accuracy with respect to the past, thus improving the sensitivity to the s quark distribution in the nucleon.This paper will focus on the neutrino physics potential of the SHiP experiment, including its sensitivity to Heavy Neutral Leptons searches.
Highlights
The Standard Model of Particle Physics represents our best current understanding of the constituents of matter and of how they interact
Its predictions have been successfully tested by many experiments, the latest of them being the discovery of the Higgs boson at the LHC in 2012 [1], [2]
Searches for new phenomena occurring at the energy frontier are being carried out at the LHC, while complementary searches for very weakly coupled long lived particles require to be investigated at the intensity frontier with a beam dump facility
Summary
The Standard Model of Particle Physics represents our best current understanding of the constituents of matter and of how they interact. Searches for new phenomena occurring at the energy frontier are being carried out at the LHC, while complementary searches for very weakly coupled long lived particles require to be investigated at the intensity frontier with a beam dump facility. The recently proposed Search for Hidden Particles (SHiP) beam dump experiment [3] at the CERN Super Proton Synchrotron (SPS) accelerator has been designed to investigate, in the GeV mass range, the existence of such hidden particles, coupled to the visible sector through gauge-singles operators (portals). Those unknown particles are expected to be predominantly accessible through the decays of heavy hadrons. We will describe the SHiP facility and the experimental apparatus, focussing on the neutrino physics potential of the project
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