A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
Creators: name: Alekhin, Sergey
name: Altmannshofer, Wolfgang
name: Asaka, Takehiko
name: Batell, Brian
name: Bezrukov, Fedor
name: Bondarenko, Kyrylo
name: Boyarsky, Alexey
name: Craig, Nathaniel
name: Choi, Ki-Young
name: Corral, Cristóbal
name: Curtin, David
name: Davidson, Sacha
name: de Gouvêa, André
name: Dell'Oro, Stefano
name: deNiverville, Patrick
name: Dev, P. S. Bhupal
name: Dreiner, Herbi
name: Drewes, Marco
name: Eijima, Shintaro
name: Essig, Rouven
name: Fradette, Anthony
name: Garbrecht, Björn
name: Gavela, Belen
name: Giudice, Gian F.
name: Gorbunov, Dmitry
name: Gori, Stefania
name: Grojean, Christophe
name: Goodsell, Mark D.
name: Guffanti, Alberto
name: Hambye, Thomas
name: Hansen, Steen H.
name: Helo, Juan Carlos
name: Hernandez, Pilar
name: Ibarra, Alejandro
name: Ivashko, Artem
name: Izaguirre, Eder
name: Jaeckel, Joerg
name: Jeong, Yu Seon
name: Kahlhoefer, Felix
name: Kahn, Yonatan
name: Katz, Andrey
name: Kim, Choong Sun
name: Kovalenko, Sergey
name: Krnjaic, Gordan
name: Lyubovitskij, Valery E.
name: Marcocci, Simone
name: Mccullough, Matthew
name: McKeen, David
name: Mitselmakher, Guenakh
name: Moch, Sven-Olaf
name: Mohapatra, Rabindra N.
name: Morrissey, David E.
name: Ovchynnikov, Maksym
name: Paschos, Emmanuel
name: Pilaftsis, Apostolos
name: Pospelov, Maxim
name: Reno, Mary Hall
name: Ringwald, Andreas
name: Ritz, Adam
name: Roszkowski, Leszek
name: Rubakov, Valery
name: Ruchayskiy, Oleg
name: Shelton, Jessie
name: Schienbein, Ingo
name: Schmeier, Daniel
name: Schmidt-Hoberg, Kai
name: Schwaller, Pedro
name: Senjanovic, Goran
name: Seto, Osamu
name: Shaposhnikov, Mikhail
name: Shuve, Brian
name: Shrock, Robert
name: Shchutska, Lesya
name: Spannowsky, Michael
name: Spray, Andy
name: Staub, Florian
name: Stolarski, Daniel
name: Strassler, Matt
name: Tello, Vladimir
name: Tramontano, Francesco
name: Tripathi, Anurag
name: Tulin, Sean
name: Vissani, Francesco
name: Winkler, Martin W.
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: 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, $τ\to 3μ$ 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
description: 200 pages + appendices/references