Münster 2017 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 105: Suche nach neuen Teilchen 6

T 105.1: Vortrag

Donnerstag, 30. März 2017, 16:45–17:00, JUR 5

Energy loss calibration for a search for heavy, (meta-)stable, charged particles at CMS — •Paul Asmuss, Tobias Kramer, Viktor Kutzner, Peter Schleper, and Benedikt Vormwald — Universität Hamburg

Many theories beyond the Standard Model predict new, long-lived particles. CMS performs a search for these kind of heavy, (meta-)stable, charged particles. Their momentum to mass ratio is often small, leading to enhanced energy loss in material. One of the main observables in this search is the measured dE/dx in the silicon tracker. In this talk, a calibration scheme for the more than 80000 read-out chips is presented which allows to use both tracker subsystems, the pixel and the strip detector, for discriminating between new heavy particles and Standard Model background. First results using data collected during LHC Run-2 at a center of mass energy of √s = 13 TeV will be shown.

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