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arXiv 1502.03841hep-phnucl-th
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真实μ介子超精细分裂的电弱修正

Electroweak Corrections to the True Muonium Hyperfine Splitting

Henry Lamm

摘要:

与其他原子系统相比,在真μ素($μ^+μ^-$)中,超精细分裂的前导级$Z$玻色子修正在不久的将来被证明是实验上可获得的。这一贡献($-109$ MHz)构成了一个完整的$\mathcal{O}(mα^7)$计算真正的μ介子超精细分裂的必要贡献。这将使μ子问题的许多解决方案受到限制。此外,我们计算了赝矢量耦合到粒子-反粒子束缚态的一般表达式,包括湮灭通道。

英文摘要:

In contrast to other atomic systems, in true muonium ($μ^+μ^-$) the leading-order $Z$ boson corrections to the hyperfine splitting are shown to be experimentally accessible in the near future. This contribution ($-109$ MHz) constitutes a necessary contribution to a full $\mathcal{O}(mα^7)$ calculation of the true muonium hyperfine splitting. This would enable a number of solutions to the muon problem to be constrained. Additionally, we compute the general expression for a pseudovector coupling to particle-antiparticle bound states at leading order, including the annihilation channel.

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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