arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.05682hep-ph
收藏

在双Higgs二重态模型中与荷电Higgs的签名同号的三轻子

Same sign trilepton as signature of charged Higgs in two Higgs doublet model

Tanmoy Mondal, Prasenjit Sanyal

摘要:

我们探讨了在大型强子对撞机上通过相同符号的三轻子信号寻找疏费米荷电希格斯粒子($\hpm$)的前景。在I型双希格斯模型中出现了一种疏费米子的情况,其中$\hpm$与标准模型费米子的耦合与$\tb$成反比。几乎所有的实验研究都依赖于带电希格斯粒子的费米子产生和衰变。因此,除非$\tb$很小,否则对于疏费米情形,对$\hpm$的限制是不存在的。我们发现,对于一个费米的情况下,电弱生产的$\hpm$是占主导地位的参数空间的大部分。随后带电和中性希格斯玻色子的玻色子衰变产生了相同符号的三轻子信号。通过一个彻底的唯象分析,我们证明了同号三轻子信号可以作为一个很好的互补搜索来探索高$\tb$区域。

英文摘要:

We explored the prospect of looking for a fermiophobic charged Higgs ($\hpm$) via the same sign trilepton signal at the LHC. A fermiophobic scenario appears in the type-I two Higgs doublet model where the coupling of the $\hpm$ with the Standard Model fermions is inversely proportional to $\tb$. Almost all the experimental searches rely on the fermionic production and decay of the charged Higgs. Consequently, the limit on $\hpm$ for fermiophobic scenarios is non-existent unless $\tb$ is small. We show that for a fermiophobic case, the electroweak production of $\hpm$ is dominant for most of the parameter space. Subsequent bosonic decay of the charged and neutral Higgses give rise to the same sign trilepton signal. With a thorough phenomenological analysis, we demonstrate that the same sign trilepton signal can be an excellent complementary search to explore the high $\tb$ regions.

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。

↑