Probing Top Changing Neutral Higgs Couplings at Colliders
Wei-Shu Hou, Tanmoy Modak

TL;DR
This paper explores collider methods to probe top-changing neutral Higgs couplings, focusing on exotic Higgs bosons and their potential signatures in processes like same-sign and triple-top production, to understand Higgs-top interactions better.
Contribution
It introduces new collider search strategies for top-changing Higgs couplings involving exotic Higgs bosons, expanding the scope beyond traditional $t o ch$ searches.
Findings
Proposed collider processes for detecting $tcH/A$ couplings.
Identified signatures like same-sign and triple-top events.
Discussed the impact of Higgs mixing angle on search prospects.
Abstract
The boson, discovered only in 2012, is lower than the top quark in mass, hence search commenced immediately thereafter, with current limits at the per mille level and improving. As the rate vanishes with the - mixing angle , we briefly review the collider probes of the top changing coupling of the exotic -even/odd Higgs bosons . Together with an extra top conserving coupling , one has an enhanced coupling alongside the familiar coupling, where is the charged Higgs boson. The main processes we advocate are (same-sign top and triple-top), and . We also discuss some related processes such as , that depend on being nonzero, comment briefly on $gg \to H/A \to t\bar t,…
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research
