Aachen 2019 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 78: Suche nach Neuen Teilchen IV
T 78.4: Vortrag
Donnerstag, 28. März 2019, 16:50–17:05, H07
A Geant4 simulation: The detector response of the SHiP Surrounding Background Tagger — •Eva-Rebecca Dietrich genannt Eisermann for the SHiP LScin SBT collaboration — JGU Mainz
The SHiP (Search for Hidden Particles) experiment has been proposed as a general-purpose fixed-target facility for the CERN SPS accelerator in order to look for weakly interacting particles which have a mass below 10 GeV/c2. It will also be used to search for light dark-matter particles and studies of tau neutrino physics.
400 GeV protons impact on the heavy target which may produce weakly interacting particles that are supposed to decay inside a large vacuum vessel (∼ 50 m). To distinguish between external and internal particle interactions, this vessel will be covered by the Surrounding Background Tagger (SBT).
A prototype module with the same dimensions as a final SBT detector cell was exposed to a test beam at the CERN PS in October 2018. It consisted of a liquid scintillator-filled steel box equipped with Wavelength-shifting Optical Modules and SiPM readout. To study the detector response, the same module was simulated in Geant4, allowing for comparison with the test beam measurements. Furthermore, different geometries can be implemented in the simulation which will be used to optimise the detector design.
This talk will give details on the Geant4 detector simulation and summarise its performance.