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A study of muon-electron elastic scattering in a test beam

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arxiv 2102.11111 v2 pith:K2WGAUKX submitted 2021-02-22 hep-ex

A study of muon-electron elastic scattering in a test beam

classification hep-ex
keywords elasticbeammuonstestcompassinteractionsscatteringtracker
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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In 2018, a test run with muons in the North Area at CERN was performed, running parasitically downstream of the COMPASS spectrometer. The aim of the test was to investigate the elastic interactions of muons on atomic electrons, in an experimental configuration similar to the one proposed by the project MUonE, which plans to perform a very precise measurement of the differential cross-section of the elastic interactions. COMPASS was taking data with a 190 GeV pion beam, stopped in a tungsten beam dump: the muons from these pions decays passed through a setup including a graphite target followed by 10 planes of Si tracker and a BGO crystal electromagnetic calorimeter placed at the end of the tracker. The elastic scattering events were analysed, and compared to expectations from MonteCarlo simulation.

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