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arXiv · 1606.04781

Instantaneous Bethe-Salpeter View of Goldstone-Type Pseudoscalar Mesons

Wolfgang Lucha·Franz F. Schöberl
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Abstract

Describing the lightest pseudoscalar mesons as bound states of quark and antiquark within the framework of an instantaneous Bethe-Salpeter formalism constructed such as to retain (in contrast to Salpeter's equation) as much information on the relativistic effects provided by the full quark propagator as conceivable allows for a surprisingly simple implementation of their near masslessness mandatory for their interpretability as pseudo-Goldstone bosons related to the spontaneous breaking of the chiral symmetries of quantum chromodynamics.

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Wolfgang Lucha, Franz F. Schöberl. 2016-06-15. Instantaneous Bethe-Salpeter View of Goldstone-Type Pseudoscalar Mesons. https://doi.org/10.1142/s0217751x1650202x

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