Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 78: Suche nach Neuen Teilchen IV

T 78.1: Group Report

Thursday, March 28, 2019, 16:00–16:20, H07

Measurement of the muon flux and spectrum for the SHiP experiment — •Stefan Bieschke, Caren Hagner, Daniel Bick, Walter Schmidt-Parzefall, Benedict Kaiser, Joachim Ebert, and Björn Opitz — Universität Hamburg, Institut für Experimentalphysik

SHiP is a proposed general purpose beam dump experiment at CERN’s SPS 400 GeV proton beam dedicated to the Search for Hidden Particles. A high intensity proton bunch stopped in a target produces a large number of particles, some of which might have evaded detection due to their very low couplings in prior experiments. Among these, a huge amount of muons is produced, considered background. For SHiP, a low background environment is necessary and an active muon shield is needed. In order to optimize this shield, knowledge of the muon spectrum to expect is crucial. Therefore in summer 2018 an experiment at the CERN SPS was performed measuring the muon flux and spectrum from a target replica of the SHiP target with a drift tube spectrometer and RPC detector at the H4 beam line. During the three week experiment O(5×10¹¹) p.o.t were collected. The status of the analysis will be presented.