The SHiP/NA67 experiment at the ECN3 high-intensity beam facility at the CERN SPS
Abstract
The Search for Hidden Particles (SHiP/NA67) is a general-purpose, high-intensity beam dump experiment approved in 2024 for the future exploitation of the ECN3 experimental hall at the CERN Super-Proton-Synchrotron in conjunction with the new Beam Dump Facility (BDF). It will collect 6×1020 protons on target over 15 years of operation. SHiP is designed to probe the largely underexplored domain of feebly interacting particles with masses in the O(100~MeV) to few-GeV range, providing leading sensitivity to most models predicting particles within this range, notably heavy neutral leptons, dark photons, dark scalars, axion-like particles and light dark matter. The intense flux of neutrinos of all flavours produced in the dump additionally enables a rich Standard Model and neutrino-physics programme with notably O(103) ντ per year of operation, thus bringing forward a study of ντ phenomenology. This contribution summarises the physics motivation, the experimental concept and the detector subsystems, and outlines the expected sensitivity and timeline.
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