Feasibility of the observation of a heavy scalar through the fully hadronic final state at the LHeC

The proposed future Large Hadron electron collider provides sufficient center of mass energies, $\sqrt{s}$, to probe heavy particles decaying into W${}^{\pm }$(Z)-boson of mass > 2m${}_W$ (2m${}_Z$). In this work we present a study to produce one such heavy CP even scalar H of mass 2m${}_h$< m${}_H$< 2m${}_t$ through charged-current production mode where H → W${}^{+}$W${}^{-}$, where hadronic decay of W${}^{\pm }$-boson is considered to reconstruct m${}_H$. Due to the presence of missing energy and forward jet in this channel, it is challenging to reconstruct m${}_H$ with above final state and thus we employed three different reconstruction methods and discuss the significance of each one. For this analysis we consider a benchmark value of m${}_H$ = 270 GeV and $\sqrt{s}$ ≈ 1.3 TeV with an assumed luminosity of 1 ab${}^{-1}$.