On interference effects in top-philic decay chains

Sizeable exotic Higgs boson production through gluon fusion via top quark loops is correlated with large decay probabilities into final states, if these are kinematically accessible. It known that g ? S t ¯ particularly susceptible to signal-background interference effects can significantly impact discovery sensitivities. In such an instance, identifying more robust signatures enhance the sensitivity becomes necessary, shifting phenomenological focus states show a reduced destructive interference. this work, we discuss relevance of signal-signal and for chains. particular, identify asymmetric cascade decays in models scalar extensions SM sector as new promising candidates. parallel, characteristic patterns provide formidable tool indirect CP spectroscopy BSM sectors made future. This motivates associated searches at present future colliders modes physics, addition serving sensitive reconstruction underlying UV electroweak potential.