Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 23: Searches/BSM II (Non-collider)
T 23.4: Vortrag
Dienstag, 1. April 2025, 17:00–17:15, ZHG010
Background suppression in the SHiP experiment with the Surround Background Tagger — •Katharina Albrecht for the SHiP-SBT collaboration — Institut für Physik, Humboldt-Universität zu Berlin, Berlin, Germany
SHiP (Search for Hidden Particles) is an experiment that will be installed in a dedicated beam-dump facility in the ECN3 cavern, located in the CERN north area. SHiP will search for feebly interacting particles (FIPs) produced by 400 GeV/c protons from the SPS impinging on a heavy-metal target. Over a 15-year span, the objective is to accumulate 6×1020 protons on target with a detector setup that allows suppression of possible background to a negligible level. The experiment focuses on optimizing the sensitivity for models featuring long-lived FIPs below 10 GeV/c2 by minimizing backgrounds induced by the huge flux of neutrinos and muons emerging from the beam-dump target. The Surround Background Tagger (SBT) is a critical component surrounding the 50 m long helium-filled decay volume. The SBT is instrumental to detect charged particles entering the decay volume from the sides as well as inelastic interactions of neutrinos and muons taking place inside the helium-filled decay volume, but also in the SBT itself. The presentation will discuss simulation studies on the background suppression strategies with focusing on role of the SBT.
Keywords: SHiP; Surround Background Tagger