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T: Fachverband Teilchenphysik

T 30: Suche nach Neuen Teilchen II

T 30.7: Vortrag

Dienstag, 26. März 2019, 17:30–17:45, H07

Search for singly produced excited bottom quarks decaying to tW with the CMS experiment — •Alexander Fröhlich, Johannes Haller, and Roman Kogler — Institut für Experimentalphysik, Universität Hamburg

We present a search for singly produced excited bottom quarks (b*) in pp-collisions at √s = 13 TeV recorded with the CMS experiment. The search is performed in the tW decay channel with a lepton and hadronic jets in the final state, where the top quark is assumed to decay hadronically, while the W boson decays into a lepton and a neutrino.

The reconstruction and identification of the top quark is performed using the Heavy Object Tagger with Variable R (HOTVR). The stable performance of this algorithm allows for a high signal sensitivity over a wide range of b* masses. Data driven methods are used to estimate standard model background contributions from misidentified objects.