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The experimental facility for the Search for Hidden Particles at the CERN SPS

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Ahdida C., Albanese R., Alexandrov A., Anokhina A., Aoki S., Arduini G., Atkin E., Azorskiy N., Back J.J., Bagulya A., Santos F. Baaltasar Dos, Baranov A., Bardou F., Barker G.J., Battistin M., Bauche J., Bay A., Bayliss V., Bencivenni G., Berdnikov A.Y., Berdnikov Y.A., Berezkina I., Bertani M., Betancourt C., et al. ,
Project Searches for Heavy Neutral Leptons at ShiP and LHCb
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Original article (peer-reviewed)

Journal Journal of Instrumentation
Volume (Issue) 14(03)
Page(s) P03025 - P03025
Title of proceedings Journal of Instrumentation
DOI 10.1088/1748-0221/14/03/p03025

Open Access

Type of Open Access Publisher (Gold Open Access)


The Search for Hidden Particles (SHiP) Collaboration has shown that the CERN SPS accelerator with its 400 GeV/c proton beam offers a unique opportunity to explore the Hidden Sector. The proposed experiment is an intensity frontier experiment which is capable of searching for hidden particles through both visible decays and through scattering signatures from recoil of electrons or nuclei. The high-intensity experimental facility developed by the SHiP Collaboration is based on a number of key features and developments which provide the possibility of probing a large part of the parameter space for a wide range of models with light long-lived super-weakly interacting particles with masses up to Script O(10) GeV/c2 in an environment of extremely clean background conditions. This paper describes the proposal for the experimental facility together with the most important feasibility studies. The paper focuses on the challenging new ideas behind the beam extraction and beam delivery, the proton beam dump, and the suppression of beam-induced background.