$H^{\pm }$ in the $W^{\pm }h$ channel at the LHC Run 2

Abstract

We analyse the discovery prospects of the charged Higgs boson, $H^{\pm }$, via its decay in the $W^{\pm }h$ channel in the minimal supersymmetric Standard Model (MSSM) as well as several 2-Higgs Doublet Models (2HDMs). $h$, the lightest scalar Higgs boson in these models, is identified with the recently discovered $\sim 125$ GeV state, $H_{\text{obs}}$, at the Large Hadron Collider (LHC). We find that, while it provides an important input in the kinematic selection of signal events, the measured $H_{\text{obs}}$ mass renders this channel inaccessible in the MSSM. In the 2HDMs though, through a dedicated signal-to-background analysis for the $pp\to t(\bar{b})H^{-}\to {\ell }^{\pm }{\nu }_{\ell }jjbb\bar{b}(\bar{b})$+h.c process, we establish that some parameter space regions will be testable at the LHC with $\sqrt{s}=14$ TeV.

Comments: 4 pages, 1 table, 2 figures - Talk given at the Toyama International Workshop on Higgs as a Probe of New Physics 2015, 11-15 February, 2015, Toyama, Japan