Search for CP violation in top-pair events with lepton+jets channel at √s=13TeV

Pu-Sheng Chen^1*, Kai-Feng Chen¹

¹Department of physics, Nation Taiwan University, Taipei, Taiwan

* Presenter:Pu-Sheng Chen, email:f06222028@ntu.edu.tw

Measurement of CP violating asymmetries in top quark pair production with data collected by the CMS experiment and corresponding to an integrated luminosity of 36 fb^-1 in pp collisions at √s=13TeV. The asymmetries are measured with T-odd triple production correlations, constructed by linearly independent four-momentum vectors associated with the final states particle of top quark decays. The resulting CP violating parameter A_CP is evaluated by counting asymmetry of the T-odd observables.

Keywords: Top, CP violation