Speaker
SuBin Han
(Seoul National University)
Description
In 2020, CMS collaboration reported the significance of 3.0$\sigma$ for the Higgs boson decay to dimuon process. We propose that by using quark/gluon tagging of the initial state radiation(ISR) jets, the significance can be considerably enhanced. We exploit the difference in the fraction of quark/gluon ISR jets of gluon-fusion Higgs signal and its background, Drell-Yan. By conducting multivariate analysis with jet-substructure variables, which have distinct distributions for each quark and gluon jets, we obtain significantly improved significance compared to the result of CMS collaboration.
