Speaker
Description
We explore $\mathcal CP$-violating anomalous $ht\bar{t}$ couplings via associated production of Higgs boson at the LHC and its future variants using a set of newly proposed T-odd observables involving momentum of final state particles. Limits on such couplings are also presented using the production asymmetries associated with the process $pp \to t(-> l^{+}\nu_l b)~\bar{t}(l^{-}\bar{\nu_l}\bar{b})$. Our estimates reflect $\left|c_p\right| \lt 4.32 \times 10^{-2}$ at LHC with $\sqrt{S}$ = 13 TeV and the integrated luminosity of 139 fb$^{-1}$. The corresponding bounds for HL-LHC with $\sqrt{S}$ = 14 TeV and FCC-hh with $\sqrt{S}$ = 100 TeV for the projected luminosities of 3 ab$^{-1}$ and 30 ab$^{-1}$ are found to be $\left|c_p\right| \lt 8.1 \times 10^{-3}$ and $\left|c_p\right| \lt 3.5 \times 10^{-4}$, respectively at 2.5 $\sigma$ level.
| Session | Beyond the Standard Model |
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