Measurement of ttbar charge asymmetry in highly boosted events in the single lepton channel at 13 TeV

18 Aug 2022, 14:00
15m
Auditorium VMP8 (University of Hamburg)

Auditorium VMP8

University of Hamburg

Von-Melle-Park 8 20146 Hamburg Germany
Presentation Top/EW/QCD

Speaker

Titas Roy (University of Illinois at Chicago (US))

Description

This measurement is performed using highly boosted top quark pair events resulting in non isolated leptons and overlapping jets. Jet substructure variables are used to identify the boosted top quark and the W boson. The top quark charge asymmetry is measured for events with ttbar invariant mass larger than 750 GeV and corrected for detector and acceptance effects using a binned maximum likelihood fit. The measurement is found to be in good agreement with the standard model prediction at next-to-next-to-leading order in perturbation theory with next-to-leading order electroweak corrections.

Authors

Titas Roy (University of Illinois at Chicago (US)) CMS Collaboration

Presentation materials