STUDY OF HIGGS BOSON PRODUCTION IN BOSONIC DECAY CHANNELS AT THE LHC (INCLUDING OFF-SHELL PRODUCTION)

Experimental studies of the Higgs boson production in bosonic decay channels by the ATLAS and CMS experiments at the LHC are described in this paper. The Higgs boson was the last undiscovered particle in the Standard Model (SM) of particle physics. The bosonic decay channels include $\gamma\gamma$, $Z\gamma$, $ZZ^*$, $WW^*$. In the $\gamma\gamma$, $Z\gamma$ and $ZZ^*$ decay channels, the whole event topology can be reconstructed. The $Z\gamma$ decay channel can be sensitive to exotic Higgs decay beyond the SM. Because of its large branching fraction, the $WW^*$ decay channel is adequate to study bosonic production. Off-shell production is considered to be sensitive to the total Higgs decay width. The bosonic decay channels are a key to probe the SM and beyond.