Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 40: Detectors 5 (scintillators)
T 40.6: Talk
Tuesday, March 5, 2024, 17:15–17:30, Geb. 30.23: 2/17
Background suppression in the SHiP experiment with the Surround Background Tagger — •Anupama Reghunath — Institut für Physik, Humboldt- Universität zu Berlin, Berlin, Germany
The Search for Hidden Particles (SHiP) experiment at CERN is proposed as a dedicated proton beam dump facility in the ECN3 cavern, aiming to explore feebly interacting particles produced by 400 GeV/c protons impinging on a heavy metal target. Over a 15-year span, the objective is to accumulate 6·1020 proton on target with a detector setup that allows suppression of possible background to a negligible level. The experiment focuses on optimizing sensitivity for models featuring long-lived exotic particles below 10 GeV/c2 and minimizing Standard Model (SM) particle flux. The Surround Background Tagger (SBT) is a critical component surrounding the 50 m long decay vessel, instrumental in suppressing background by detecting charged particles either entering the vacuum vessel from outside, or produced in inelastic interactions in the vacuum vessel walls. This is crucial for distinguishing actual signals from background, particularly as long-lived SM particles produced in these interactions can mimic the signatures of hidden sector particles. This presentation will discuss simulation studies showing how different background sources are vetoed robustly with the focus of the Surrounding Background Tagger (SBT).
Keywords: SHiP; SBT; FairSHiP