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arXiv 1309.7822hep-ph
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关于CP破坏的6维电弱规范玻色子算符的LHC搜索

On LHC searches for CP-violating, dimension-6 electroweak gauge boson operators

Ben Gripaios, Dave Sutherland

摘要:

我们重新考虑在大型强子对撞机上观察到一个涉及$W^+W^-Z$的6维CP-违反算子的前景。首先,我们纠正了一些较早的计算的环路贡献的中子电偶极矩的同伴运营商,涉及$W^+W^-γ$,表明测量意味着一个非常强大的约束上的同伴运营商。其次,我们量化了这两个算子之间的联系,表明强耦合的新物理只有在低于$\sim 170$ GeV的尺度上才能在拟议的搜索中观察到。这是最不可能的,因为在LHC和其他地方的其他搜索结果都是空的。

英文摘要:

We reconsider the prospects for observing a dimension-6, CP-violating operator involving $W^+W^-Z$ at the LHC. Firstly, we correct a number of earlier calculations of the loop contribution to the neutron electric dipole moment of a companion operator, involving $W^+W^-γ$, showing that measurements imply a very strong bound on the companion operator. Secondly, we quantify the link between the two operators, showing that strongly-coupled new physics could only be observable in proposed searches if it appeared at a scale below $\sim 170$ GeV. This is most unlikely, given the null results of other searches at the LHC and elsewhere.

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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