论文标题
探测对山口的顶部变化的中性希格斯耦合
Probing Top Changing Neutral Higgs Couplings at Colliders
论文作者
论文摘要
仅在2012年才发现的$ H（125）$ BOSON低于Mass的顶级夸克，因此$ t \ to Ch $搜索立即开始，目前的限制为每米级和改善。由于$ t \ to ch $费率随$ h $ - $ h $混合角度$ \cosγ\至0 $而消失，我们简要介绍了对奇异$ cp $ cp $ cp $ - even/odd higgs bosons bosons $ cpy $ tch/tca $耦合$ρ_{tc_ {tc_ {tc_ {tc_ {tc_ {tc_ {tc_ {tc_ {tc_ {tc_ {加上额外的顶部保存$ tth/tta $耦合$ρ_{tt} $，一个人具有增强的$ cbh^+$耦合以及熟悉的$ tbh^+$耦合，其中$ h^+$是充电的higgs boson。我们主张的主要过程是$ cg \ to th/a \ to tt \ bar c，\; tt \ bar t $（same-sign top和triple-top），以及$ cg \ to bh^+ \ to bt \ bar b $。我们还讨论了一些相关的过程，例如$ cg \ to thh $，$ tzh $，这些过程取决于$ \cosγ$是非零的，请简要介绍$ gg \ to h/a \ to t \ bar t，t \ bar c $ resonant的产生，并触摸$ρ_{tu} $ coupling。
The $h(125)$ boson, discovered only in 2012, is lower than the top quark in mass, hence $t \to ch$ search commenced immediately thereafter, with current limits at the per mille level and improving. As the $t \to ch$ rate vanishes with the $h$-$H$ mixing angle $\cosγ\to 0$, we briefly review the collider probes of the top changing $tcH/tcA$ coupling $ρ_{tc}$ of the exotic $CP$-even/odd Higgs bosons $H/A$. Together with an extra top conserving $ttH/ttA$ coupling $ρ_{tt}$, one has an enhanced $cbH^+$ coupling alongside the familiar $tbH^+$ coupling, where $H^+$ is the charged Higgs boson. The main processes we advocate are $cg \to tH/A \to tt\bar c,\; tt\bar t$ (same-sign top and triple-top), and $cg \to bH^+ \to bt\bar b$. We also discuss some related processes such as $cg \to thh$, $tZH$ that depend on $\cosγ$ being nonzero, comment briefly on $gg \to H/A \to t\bar t, t\bar c$ resonant production, and touch upon the $ρ_{tu}$ coupling.
