Instantaneous Bethe-Salpeter kernel for the lightest pseudoscalar mesons
- Author(s)
- Wolfgang Lucha, Franz F. Schoeberl
- Abstract
Starting from a phenomenologically successful, numerical solution of the Dyson-Schwinger equation that governs the quark propagator, we reconstruct in detail the interaction kernel that has to enter the instantaneous approximation to the Bethe-Salpeter equation to allow us to describe the lightest pseudoscalar mesons as quark-antiquark bound states exhibiting the (almost) masslessness necessary for them to be interpretable as the (pseudo) Goldstone bosons related to the spontaneous chiral symmetry breaking of quantum chromodynamics.
- Organisation(s)
- Particle Physics
- External organisation(s)
- Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Physical Review D
- Volume
- 93
- No. of pages
- 8
- ISSN
- 1550-7998
- DOI
- https://doi.org/10.1103/PhysRevD.93.096005
- Publication date
- 05-2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103024 Quantum field theory
- Keywords
- ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/instantaneous-bethesalpeter-kernel-for-the-lightest-pseudoscalar-mesons(843dbe92-f724-4c69-9ef1-c3e07b780600).html