Erlangen 2026 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 48: Methods in Particle Physics III
T 48.2: Vortrag
Mittwoch, 18. März 2026, 16:30–16:45, KH 00.020
Supressing muon-induced background in SHiP with the Surrounding Background Tagger — •Jasmin Weiß — Humboldt-Universität zu Berlin
SHiP (Search for Hidden Particles) will be a fixed-target experiment at CERN’s SPS designed to search for feebly interacting particles (FIPs) in the GeV range. Installed in a dedicated beam-dump facility in the ECN3 cavern, SHiP will use 400 GeV/c SPS protons to reach 6 · 1020 on-target collisions over 15 years of data taking, while suppressing backgrounds from the intense muon and neutrino flux emerging from the beam dump. A key element is the Surrounding Background Tagger (SBT), which encloses the 50 m helium-filled decay volume and tags charged particles entering from the sides as well as inelastic interactions occurring inside the decay volume.
The contribution focuses on simulation studies evaluating muon-induced backgrounds and the performance of the SBT in rejecting these events, highlighting their impact on the overall background-suppression strategy.
Keywords: SHiP; Surrounding Background Tagger; Muon background