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arXiv 2103.13082hep-phhep-ex
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LHC生产$cg\to bH^+\to b A W^+$的前景和意义

Prospect and implications of $cg\to bH^+\to b A W^+$ production at the LHC

Wei-Shu Hou, Tanmoy Modak

摘要:

我们研究了在大型强子对撞机上发现$cg\to bH^+\to b A W^+$过程的前景。在一般双Higgs模型(g2 HDM)中,由顶味变化中性Higgs耦合$ρ_{tc}$诱导的过程可能是由带电荷的$m_{H^+} > m_A + m_{W^+}$(其中$H^+$和$A$)和$CP$ -奇Higgs玻色子引起的.我们表明,$cg\to bH^+\to b A W^+$过程可以发现在LHC运行3,而完整的运行2的数据在手可以通过搜索相同的符号双轻子的最终状态显着约束的参数空间。该过程对CMS报告的$m_A\approx 400$ GeV处$gg\to A \to t \bar t$过量的暗示具有独特的意义。当与其他现有的约束条件相结合时,$cg\to bH^+\to b A W^+$过程基本上可以排除g2 HDM对这种过度的解释。

英文摘要:

We study the prospect for discovering the $cg\to bH^+\to b A W^+$ process at the LHC. Induced by the top-flavor changing neutral Higgs coupling $ρ_{tc}$, the process may emerge if $m_{H^+} > m_A + m_{W^+}$, where $H^+$ and $A$ are charged and $CP$-odd Higgs bosons in the general two Higgs Doublet Model (g2HDM). We show that the $cg\to bH^+\to b A W^+$ process can be discovered at LHC Run 3, while the full Run 2 data at hand can constrain the parameter space significantly by searching for the same-sign dilepton final state. The process has unique implications on the hint of $gg\to A \to t \bar t$ excess at $m_A\approx 400$ GeV reported by CMS. When combined with other existing constraints, the $cg\to bH^+\to b A W^+$ process can essentially rule out the g2HDM explanation of such an excess.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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