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arXiv 1709.02130hep-phnucl-th
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轻赝标介子:逆瞬时Bethe-Salpeter一瞥

Light Pseudoscalar Mesons: an Inverse Instantaneous Bethe-Salpeter Glimpse

Wolfgang Lucha, Franz F. Schoberl

摘要:

根据戈德斯通定理,实现π介子和K介子作为夸克和反夸克的束缚态以及作为与QCD的手征对称性的动力学(和显式)破坏相关的(几乎)无质量玻色子态的自洽同时解释仍然是一个重大挑战。将反演技术应用于齐次贝特-萨尔彼得方程的简化版本,使我们能够沿着一条简单的路线定性地了解潜在的有效相互作用可能是什么样子。

英文摘要:

Achieving self-consistent simultaneous interpretations of pions and kaons as bound states of quark and antiquark and as the (almost) massless boson states related, according to Goldstone's theorem, to the dynamical (and explicit) breakdown of the chiral symmetries of QCD still represents a major challenge. Applying inversion techniques to conveniently simplified versions of the homogeneous Bethe-Salpeter equation, governing bound states in quantum field theory, enables us to get along a straightforward route a qualitative idea of how the underlying effective interaction might look like.

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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