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T: Fachverband Teilchenphysik

T 23: Searches/BSM II (Non-collider)

T 23.3: Vortrag

Dienstag, 1. April 2025, 16:45–17:00, ZHG010

BDF/SHiP @CERN (NA67): Search for Hidden Particles at a Future Beam Dump Facility — •Annika Hollnagel for the SHiP collaboration — JGU Mainz (DE)

The Search for Hidden Particles (SHiP) experiment has been selected as the new flagship project of the CERN Physics Beyond Colliders intensity frontier, featuring a dedicated Beam Dump Facility (BDF) at CERN's North Area ECN3 to exploit the full potential of the 400GeV SPS proton beam.

The experiment will be realised by a two-fold detector setup enabling a diverse physics program: While the Hidden Sector (HS) detector is going to study the decay of Heavy Neutral Leptons (HNL), Axion-Like Particles (ALPs), and other Feebly-Interacting Particles (FIPs) in a broad range of masses and coupling inaccessible to colliders, the upstream Scattering and Neutrino Detector (SND) will enable a direct search for Light Dark Matter (LDM), as well as measurements in neutrino physics with unprecedented precision. With the detector located closely downstream of the dense proton target, a major challenge will be the reduction of beam-related backgrounds. Following the hadron stopper, a magnetic muon shield will deflect most of these particles from the detector acceptance, and the 50m-long HS decay volume will be enveloped by a Surrounding Background Tagger (SBT). This talk will give an overview of the detector technologies and physics capabilities of the proposed experiment.

Having recently been approved by the CERN Research Board, this is the ideal time for new groups to join the project.

Keywords: HNL; FIP; Neutrino; CERN; SHiP