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T: Fachverband Teilchenphysik
T 83: Search for new particles IV
T 83.7: Vortrag
Donnerstag, 2. April 2020, 18:00–18:15, L-2.017
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
A search is presented for singly produced excited bottom quarks (b*) decaying to a top quark and a W boson in pp collisions at √s = 13 TeV using the full Run2 dataset corresponding to 137 fb−1 recorded with the CMS detector. The search is performed in the lepton + jets final state, where the top quark decays hadronically, and the W boson decays into a lepton and a neutrino.
The reconstruction and identification of the top quark is done with the Heavy Object Tagger with Variable R (HOTVR). Its stable performance over a large range in transverse momentum 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.