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arXiv 1405.4545hep-phhep-ex
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非对称轻子味破坏Higgs衰变

Asymmetric lepton-flavor violating Higgs decays

Shikma Bressler, Avital Dery, Aielet Efrati

摘要:

介绍了一种在轻子$τ$衰变道中寻找轻子味破坏的Higgs衰变$h\rightarrowτμ$和$h\rightarrowτe$的新方法。特别地,标准模型背景以完全数据驱动的方式估计。该方法利用信号事件的最终状态中电子和μ子之间的不对称性,并且对两种衰变速率的差异敏感。使用这种方法,我们调查的LHC对这些过程的敏感性。在$\sqrt{s}=8$ TeV处具有20 ${\rm fb}^{-1}$的数据,我们期望用于观察$0.9\%$级的分支比的$3σ$灵敏度。详细讨论了方法和建议的统计处理。

英文摘要:

We introduce a new method to search for the lepton-flavor violating Higgs decays $h\rightarrowτμ$ and $h\rightarrowτe$ in the leptonic $τ$ decay channel. In particular, the Standard Model background is estimated in a fully data driven way. The method exploits the asymmetry between electrons and muons in the final state of signal events and is sensitive to differences in the rates of the two decays. Using this method, we investigate the LHC sensitivity to these processes. With 20 ${\rm fb}^{-1}$ of data at $\sqrt{s}=8$ TeV, we expect a $3σ$ sensitivity for observing branching ratios of order $0.9\%$. The method and the suggested statistical treatment are discussed in detail.

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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