论文标题
通过$ pp \ to h搜索额外的希格斯玻色子，a \至τμ，ττ$在大型强子对撞机上
Searching for extra Higgs bosons via $pp\to H,A\to τμ, ττ$ at the Large Hadron Collider
论文作者
论文摘要
We extend heavy Higgs searches at the Large Hadron Collider for $H \to τμ$ by CMS, and $H \to ττ$ by ATLAS and CMS, to study discovery prospects of extra Higgs states in $pp \to H,A \to τμ, ττ$ with $eμ+ E_T$ and $j_τ μ+ E_T$ final states, where $j_τ = π\, , ρ\，A_1 $和$ E_T $缺少横向能量。在一个一般的两个Higgs双重模型中，没有$ Z_2 $对称，额外的Yukawa耦合$ρ_{τττ} $和$ρ_{τμ} $可以驱动$ h，a \ττ$和$μ$ $ cannel in hadron colliders in hadron colliders th gluon-gluon fusion $ $ρ_$ρ_发现灯光玻色子$ H（125）$与标准型号Higgs Boson非常相似；在$ \cosγ\至0 $的对齐限制中，$ h $ - $ h $混合，诸如$ h \至τμ$之类的变化中性的中性希格斯耦合自然会被抑制，但是$ h $的耦合是由$ \sinγ\ to fsinγ\ to 1 $优化的。我们为$ H，A \至τμ$和$ττ$定义了各种信号区域，并从具有现实的接受和标记效率的主要过程中评估物理背景。提出了两项不同的研究。我们首先进行了Parton级别的研究，而没有任何强调和最少的检测器涂抹。然后，我们使用Pythia 8.2和使用DELPHE的快速检测器模拟进行强发化来提供事件级别的模拟。 $ \ sqrt {s} = 13 $ tev的结果显得很有希望，我们将进一步扩展到$ \ sqrt {s} = 14 $ tev for High Luminosity LHC。
We extend heavy Higgs searches at the Large Hadron Collider for $H \to τμ$ by CMS, and $H \to ττ$ by ATLAS and CMS, to study discovery prospects of extra Higgs states in $pp \to H,A \to τμ, ττ$ with $eμ+ E_T$ and $j_τ μ+ E_T$ final states, where $j_τ = π\, , ρ\, , a_1$ and $E_T$ is missing transverse energy. In a general two Higgs doublet model without $Z_2$ symmetry, extra Yukawa couplings $ρ_{ττ}$ and $ρ_{τμ}$ can drive $H,A \to ττ$ and $τμ$ channels at hadron colliders, following gluon-gluon fusion production with extra $ρ_{tt}$ couplings. The light Higgs boson $h(125)$ is found to resemble closely the Standard Model Higgs boson; in the alignment limit of $\cosγ\to 0$ for $h$--$H$ mixing, flavor changing neutral Higgs couplings such as $h \to τμ$ are naturally suppressed, but the couplings of the heavier $H$ is optimized by $\sin γ\to 1$. We define various signal regions for $H,A \to τμ$ and $ττ$ and evaluate physics backgrounds from dominant processes with realistic acceptance cuts and tagging efficiencies. Two different studies are presented. We first perform a parton level study without any hadronization and with minimal detector smearing. We then include hadronization using PYTHIA 8.2 and fast detector simulation using DELPHES to give event level simulation. Results for $\sqrt{s}= 13$ TeV appear promising, which we extend further to $\sqrt{s} = 14$ TeV for the High Luminosity LHC.
