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Latest CMS results on the upper limits on $\sigma_{H^\pm}$BR($H^\pm\rightarrow \tau^\pm\nu)$ and $\sigma_{H^\pm}$BR($H^+ \rightarrow t\bar{b}$)for $\sqrt{s}=13$ TeV at an integrated luminosity of 35.9 fb$^{-1}$ are used toimpose constraints on the charged Higgs $H^\pm$ parameters within the Two HiggsDoublet Model (2HDM). The 2HDM is the simplest extension of Standard Model (SM)under the same gauge symmetry to contain charged Higgs and is relatively lessconstrained compared to Minimal Supersymmetric Standard Model (MSSM). Thelatest results lead to much more stringent constraints on charged Higgsparameter space in comparison to the earlier 8 TeV results. The CMScollaboration also studied the exotic bosonic decay $H^\pm \rightarrow W^\pm A$and $A \rightarrow \mu^+ \mu^-$ for the first time and put upper limits on theBR($t\rightarrow H^+ b$) for light charged Higgs. These constraints lead toexclusion of parameter space which are not excluded by the $\tau \nu$ channel.For comparison the exclusion regions from flavour physics constraints are alsodiscussed.

Limits on the Charged Higgs Parameters in the Two Higgs Doublet Model using CMS $\sqrt{s}=13$ TeV Results