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arXiv 1906.09504hep-ph
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矢量($1^{--}$)和轴向矢量($1^{++}$)粲偶素中的介子杂化

Meson-Hybrid Mixing in Vector ($1^{--}$) and Axial Vector ($1^{++}$) Charmonium

D. Harnett, A. Palameta, J. Ho, T. G. Steele

摘要:

本文用QCD拉普拉斯求和规则研究了矢量和轴矢量粲偶素中常规介子和混合介子的混合。我们在算子乘积展开内计算介子混合交叉算符,考虑到凝析贡献,包括六维以及复合算子重整化诱导图。使用测得的质量作为输入的charmonium类状态,我们探测已知的共振非零耦合到常规和混合介子电流,介子混合混合的信号。

英文摘要:

We study mixing between conventional and hybrid mesons in vector and axial vector charmonium using QCD Laplace sum-rules. We compute meson-hybrid cross correlators within the operator product expansion, taking into account condensate contributions up to and including those of dimension-six as well as composite operator renormalization-induced diagrams. Using measured masses of charmonium-like states as input, we probe known resonances for nonzero coupling to both conventional and hybrid meson currents, a signal for meson-hybrid mixing.

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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