Search for flavor-changing neutral current interactions of the top quark and Higgs boson in final states with two photons in proton-proton collisions at √s = 13 TeV at the CMS Experiment

Samuel May¹, Kirill Skovpen², Ludivine Ceard³, Meng-Cheng Chen³, Kai-Feng Chen³, Yu-Wei Kao^3*, Claudio Campagnari⁴, Hualin Mei⁴, Frank Wuerthwein⁵, Avi Yagil⁵, Frank Golf⁶

¹Physics, Boston University, Massachusetts, USA
²Physics, Ghent University, Ghent, Belgium
³Physics, National Taiwan University, Taipei, Taiwan
⁴Physics, University of California Santa Barbara, California, USA
⁵Physics, University of California San Diego, California, USA
⁶Physics, University of Nebraska–Lincoln, Nebraska, USA

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

The status of the search for flavor-changing neutral current (FCNC) involving a top quark and a Higgs boson decaying to two photons is presented. The study is based on proton-proton collision data collected with the Compact Muon Solenoid (CMS) detector during the period from 2016 to 2018 at the Large Hadron Collider (LHC). The analysis strategy is well developed including the description of the various machine learning techniques, such as neural networks and the boosted decision trees. Since most CMS published papers on related topics are still from 8 TeV or with 2016 data at 13 TeV only, the sensitivity on the new upper limits is expected to be exciting.

Keywords: Top quark, Higgs boson, Flavour-changing neutral current, CMS, LHC