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arXiv 0901.1597hep-phhep-lat
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手征动力学中重介子与Goldstone玻色子的相互作用

Interactions between heavy mesons and Goldstone bosons from chiral dynamics

Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner

摘要:

利用次领先阶的手征微扰理论及其幺正化形式,计算了粲介子与Goldstone玻色子的S波散射长度,并探讨了它们与夸克质量的关系.在最近的格点计算中,所有散射长度与夸克质量的关系都可以用幺正化形式再现.我们还讨论了这些观测值中可能存在的束缚态信号。

英文摘要:

We calculate the S-wave scattering lengths for charmed mesons scattering off Goldstone bosons and explore their quark mass dependence using chiral perturbation theory up to next-to-leading order as well as a unitarized version of it. The quark mass dependence of all scattering lengths determined in a recent lattice calculation can be reproduced by the unitarized version. We also discuss signals of possible bound states in these observables.

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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