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T: Fachverband Teilchenphysik

T 88: Detector Systems III

T 88.7: Vortrag

Donnerstag, 18. März 2021, 17:30–17:45, Tm

The SHiP Experiment - Surround Background Tagger (SBT) — •Patrick Deucher for the SHiP-SBT collaboration — Johannes Gutenberg Universität, Mainz, Germany

SHiP is a proposed, general-purpose fixed target experiment at the SPS accelerator of the CERN Facility. Data collection is aimed to start in 2027 focusing on the identification of Hidden Sector Particles, such as Heavy Neutral Leptons and light dark matter, and further investigation concerning tau neutrinos. When the high-intensity 400 GeV/c proton beam impinges on the hybrid target, heavy mesons and other weakly interacting particles of masses below 10 GeV/c* are created which can potentially decay into the particles of interest. After a hadron absorber and an active muon shield, the beam traverses through a vacuum vessel, where the particles are expected to decay. The products are then detected by a magnetic spectrometer and a calorimeter. To discriminate against external particle interactions, the vessel is enveloped by the Surround Background Tagger (SBT). The SBT is divided into segments and utilizes liquid scintillator and Wavelength Shifting Optical Modules (WOM) connected to SiPMs to identify throughgoing particles. In 2018/19, we have performed test beam measurements with a prototype detector cell at CERN PS and DESY. This contribution gives a general overview on the SBT and results from the past test beams.