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arXiv 1607.02154hep-phhep-ex
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简并希格斯玻色子:在125 GeV处隐藏第二个希格斯玻色子

Degenerate Higgs bosons: hiding a second Higgs at 125 GeV

Ning Chen, Zuowei Liu

摘要:

目前发现的希格斯质量附近可能存在不止一个希格斯玻色子,由于大型强子对撞机内禀能量分辨率的限制,这些粒子不能被正确分辨。我们研究了两个$CP$ -偶希格斯玻色子玻色子在质量上简并的情况。为了正确预测Higgs签名,必须考虑两个希格斯玻色子玻色子之间的量子干涉效应,然而,在文献中经常被忽视。我们进行了一个全球性的分析,包括在大型强子对撞机的各种希格斯粒子搜索通道的干扰效应,这表明,存在两个简并希格斯玻色子附近125 GeV的可能性很大。讨论了区分简并Higgs和单Higgs的前景。

英文摘要:

More than one Higgs boson may be present near the currently discovered Higgs mass, which can not be properly resolved due to the limitations in the intrinsic energy resolution at the Large Hadron Collider. We investigated the scenarios where two $CP$-even Higgs bosons are degenerate in mass. To correctly predict the Higgs signatures, quantum interference effects between the two Higgs bosons must be taken into account, which, however, has been often neglected in the literature. We carried out a global analysis including the interference effects for a variety of Higgs searching channels at the Large Hadron Collider, which suggests that the existence of two degenerate Higgs bosons near 125 GeV is highly likely. Prospects of distinguishing the degenerate Higgs case from the single Higgs case are discussed.

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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