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arXiv 1305.6599hep-ph
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中性标量与固定源耦合的相似流

Similarity flow of a neutral scalar coupled to a fixed source

Billy D. Jones, Robert J. Perry

摘要:

利用相似重整化群研究了中性标量介子与固定同位旋核子相互作用系统的演化。固定源最终过于奇异,并且从相似流中产生适当修饰的静态源。根据汤川势,固定源被一个介子虚云装扮,介子虚云延伸到介子质量的倒数之外。对于低能量的源产生汤川平均场,从剩余的介子场的波动。对于这个固定源模型,有效粒子的重整化群过程也被说明。

英文摘要:

A neutral scalar meson interacting with a fixed isoscalar nucleon is evolved according to the similarity renormalization group. The fixed source ends up being too singular and an appropriately dressed static source arises from the similarity flow. The fixed source is dressed by a virtual cloud of mesons extending out past the inverse meson mass according to the Yukawa potential. For low energies the source produces a Yukawa mean field which decouples from the remaining meson field fluctuations. The renormalization group procedure for effective particles is also illustrated for this fixed-source model.

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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