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

Pu-Sheng Chen^1*, Kai-Feng Chen¹

¹物理所, 國立台灣大學, 台北市, Taiwan

* Presenter:Pu-Sheng Chen, email:sam7k9621@gmail.com

The results of a search for CP violation in the production and decay of top quark-antiquark pairs are presented.
The search uses data from proton-proton collisions at √s = 13 TeV collected with the CMS detector, corresponding to an integrated luminosity of 137 inverse femtobarn
Asymmetries in triple-product T-odd observables, sensitive to CP violation, are constructed from linearly independent four-momentum vectors associated with the final state particles.
The resulting CP violating parameter Acp is evaluated by counting asymmetry of the T-odd observables.

Keywords: CP violation, standard model, hadronic physics, quark, Large Hadron Collider