Analytic Bethe-Salpeter description of the lightest pseudoscalar mesons
- Author(s)
- Wolfgang Lucha, Franz F. Schöberl
- Abstract
Within the Bethe-Salpeter formalism for instantaneous interactions, we describe, along a totally analytic route, the lightest pseudoscalar mesons by quark-antiquark bound states which show at least three indispensable general features-namely, the (almost) masslessness required for pions and kaons to be interpretable as (pseudo-)Goldstone bosons, the suitable asymptotic behavior in the limit of large spacelike relative momenta as determined by the relationship between quark mass function and Bethe-Salpeter amplitudes, and a pointwise behavior for finite spacelike relative momenta suited for guaranteeing color confinement.
- Organisation(s)
- Particle Physics
- External organisation(s)
- Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Physical Review D
- Volume
- 93
- No. of pages
- 10
- ISSN
- 1550-7998
- DOI
- https://doi.org/10.1103/PhysRevD.93.056006
- Publication date
- 03-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103034 Particle physics
- Keywords
- ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/analytic-bethesalpeter-description-of-the-lightest-pseudoscalar-mesons(c3e66ac6-6278-48be-a9e0-8d7f861c674e).html