论文标题
通过$ CB- $ Fusion在大型强子对撞机上通过$ CB- $ Fusion收费的Higgs Boson生产
Charged Higgs boson production via $cb-$fusion at the Large Hadron Collider
论文作者
论文摘要
我们通过夸克融合机制$ c \ bar {b} \ to H^ - $分析了大型强子对撞机（LHC）在大型强子对撞机（LHC）上的生产，考虑到最终状态下的衰减通道$ h^ - \ to h^ - $。 We study this process in the framework of the 2-Higgs Doublet Model Type III (2HDM-III) which assumes a four-zero texture in the Yukawa matrices and a general Higgs potential, wherein the two Higgs doublets coupling to both up and down fermions do generate Flavour Changing Neutral Currents (FCNCs) yet the latter can be controlled by the texture when flavour physics constraints被考虑。我们考虑模型的参数空间，其中该信号得到增强并与理论约束和实验数据一致。特别是，我们使用Lepton特异性的Yukawa耦合来利用该设置，并评估对这种$ H^\ pm $信号的LHC敏感性，以相对于主要的{不可约和}可简化的背景。 We show that in our model BR$(H^\pm \to cb) \sim 0.1- 0.2$ and BR$(H^\pm \to τν) \sim 0.7-0.9$ so that, under these conditions, the prospects for $H^\pm$ detection in the 2HDM-III in the aforementioned production and decay channels are excellent assuming standard collider energy and luminosity conditions.
We analyse the production of a light charged Higgs boson at the Large Hadron Collider (LHC) via the quark-fusion mechanism $c \bar{b} \to H^- $ considering the decay channel $H^- \to τ\bar ν_τ$ in the final state. We study this process in the framework of the 2-Higgs Doublet Model Type III (2HDM-III) which assumes a four-zero texture in the Yukawa matrices and a general Higgs potential, wherein the two Higgs doublets coupling to both up and down fermions do generate Flavour Changing Neutral Currents (FCNCs) yet the latter can be controlled by the texture when flavour physics constraints are considered. We consider the parameter space of the model where this signal is enhanced and in agreement with both theoretical constraints and experimental data. In particular, we exploit the setup with lepton-specific-like Yukawa couplings and assess the LHC sensitivity to such $H^\pm$ signals against the dominant {irreducible and} reducible backgrounds. We show that in our model BR$(H^\pm \to cb) \sim 0.1- 0.2$ and BR$(H^\pm \to τν) \sim 0.7-0.9$ so that, under these conditions, the prospects for $H^\pm$ detection in the 2HDM-III in the aforementioned production and decay channels are excellent assuming standard collider energy and luminosity conditions.
