Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 35: Top-Physik I

T 35.4: Vortrag

Dienstag, 26. März 2019, 16:45–17:00, S10

Constraining anomalous Wtb couplings using measurements of top quark polarization vector components in t-channel single top quark events — •David Seith, Thorsten Chwalek, Thomas Müller, Denise Müller, Soureek Mitra, and Nils Faltermann — Institut für Experimentelle Teilchenphysik(ETP), Karlsruher Institut für Technologie (KIT)

Top quarks are produced polarized at the LHC. Their polarization is highly sensitive to anomalous contributions to the Wtb vertex. Deviations in the top quark polarization from the predictions of the Standard Model could therefore hint at new physics. The high statistics provided by the LHC in Run II allow to measure the polarization of the top quark to yet unrivaled precision and to further constrain any new physics contribution. In this talk the analysis of the top quark polarization with the CMS experiment is presented.