Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 37: Search for New Particles II

T 37.8: Vortrag

Dienstag, 16. März 2021, 17:45–18:00, Tl

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

We present a search for a singly produced excited bottom quark (b*) in data of pp-collisions at √s=13 TeV recorded with the CMS detector. The search is performed in the tW decay channel, where the top quark decays hadronically, while 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). 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.