Search for $HZ{Z}^{\prime }$ couplings at the LHC

Abstract

New physics models predict the possibility of extra neutral gauge bosons ($Z^{\prime }$) associated with an extra $U(1{)}^{\prime }$ gauge symmetry. We study the couplings of the Higgs boson to the $Z$ boson and $Z^{\prime }$ boson predicted by the new physics models. The couplings of the $Z^{\prime }$ boson to quarks can also be investigated through the $Z^{\prime }q\bar{q}$ interactions. The accessible ranges of the parameter space have been searched for processes $pp\to HZX$ and $pp\to HHZX$ at the LHC with $\sqrt{s}=14$ TeV.

Comments: 10 pages, 10 figures