Search for the Higgs boson decaying to a pair of muons in pp collisions at 13 TeV with the ATLAS detector

Jay Chan^1*

¹Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA

* Presenter:Jay Chan, email:cchan62@wisc.edu

The Higgs to dimuon decay is the most promising process to observe the couplings between Higgs Boson and the second generation fermions at the LHC. A search for the dimuon decay of the Higgs boson is performed using the data corresponding to an integrated luminosity of 139 fb⁻¹ collected with the ATLAS detector in pp collisions at √s = 13 TeV at the Large Hadron Collider. Events are divided into several regions to target different Higgs production modes using boosted decision trees (BDT). A measurement is then performed with a simultaneous fit to the dimuon mass spectrum in those regions. The observed (expected) significance over the background-only hypothesis for a Higgs boson with a mass of 125.09 GeV is 2.0σ (1.7σ)

Keywords: Higgs boson, Yukawa coupling, Muon, Higgs decay