Speaker
Description
We investigate the sensitivity to charged Higgs interactions in single anti-top production at the proposed \textit{Large Hadron Electron Collider} (LHeC) via the process $e^- p \to \bar{t}\,\nu_e$. Within the real $Y=0$ scalar triplet model ($\Delta$SM), the charged Higgs $H^+$ contributes as a t-channel mediator, inducing characteristic deviations from the Standard Model expectation. This channel provides a direct probe of the $\bar{t}\bar{b}H^+$ coupling, with sensitivity arising from both total cross-section and differential observables.
The study is performed at a center-of-mass energy of $\sqrt{s} \simeq 1.3~\text{TeV}$, corresponding to an electron beam energy of $E_e = 60~\text{GeV}$ and a proton beam energy of $E_p = 7~\text{TeV}$, with an electron beam polarization of $-80\%$. We analyze key kinematic distributions of the final-state particles and construct asymmetry observables, with particular emphasis on top-quark polarization and angular correlations of its decay products. These observables provide enhanced sensitivity to the chiral structure of the interaction and to interference effects between the Standard Model $W$-boson exchange and the charged Higgs contribution.
| Apply for student award at which level: | MSc |
|---|---|
| Consent on use of personal information: Abstract Submission | Yes, I ACCEPT |