Status of searches for Top Quark FCNC mediated with Higgs boson at CMS experiment

Yu-Wei Kao^1*, Kai-Feng Chen¹

¹Physics, National Taiwan University, Taipei, Taiwan

* Presenter:Yu-Wei Kao, email:d07222014@ntu.edu.tw

The status of CMS searches for flavor changing neutral current (FCNC) involving a top quark and a neutral gauge boson will be presented. These studies are based on proton-proton collision data collected with CMS detector at the LHC. Although most analyses are still from 8 TeV, or with 2016 data at 13 TeV only, still, limits on branching ratios have been set around 10^–3~10^–5 already. Moreover, results of top FCNC searches are expected to push for two orders of magnitudes further at HL-LHC. As a consequence, expectations from some new physics models become accessible in the foreseeable future.

Keywords: top quark, flavor changing neutral current, CMS, LHC, HL-LHC