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T: Fachverband Teilchenphysik

T 95: Gaseous Detectors III

T 95.1: Vortrag

Freitag, 20. März 2026, 09:00–09:15, KH 01.014

Background Studies at the SHiP Spectrometer Straw Tracker — •Hannah Limberg, Caren Hagner, Daniel Bick, Wei-Chieh Lee, and Walter Schmidt-Parzefall — Institute of Experimental Physics, University of Hamburg, Hamburg, Germany

SHiP (Search for Hidden Particles) is a general-purpose beam-dump experiment currently in preparation at the CERN SPS. The experiment is designed to explore physics beyond the Standard Model by searching for feebly interacting particles (FIPs), which are predicted by several theoretical models of the hidden sector. When the high-intensity proton beam from the SPS hits a thick target, the collisions can potentially create hidden particles. These particles enter a 50 m decay volume and decay into Standard Model particles. They are detected by the spectrometer straw tracker located behind the decay volume. While only moderate particle rates from the target are expected, backgrounds from secondary interactions, for example in the tracker frames, will contribute significantly to the total number of hits in the spectrometer. The influence of background and its impact on the detection efficiency are investigated through simulation studies. The results will be presented in this talk.

Keywords: SHiP; straw tracker; background