Instantaneous Bethe-Salpeter kernel for the lightest pseudoscalar mesons

Autor(en)

Wolfgang Lucha, Franz F. Schoeberl

Abstrakt

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(en)

Teilchenphysik

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW)

Journal

Physical Review D

Band

93

Anzahl der Seiten

8

ISSN

1550-7998

DOI

https://doi.org/10.1103/PhysRevD.93.096005

Publikationsdatum

05-2016

Peer-reviewed

Ja

ÖFOS 2012

103024 Quantenfeldtheorie

Schlagwörter

ASJC Scopus Sachgebiete

Physics and Astronomy (miscellaneous)

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/instantaneous-bethesalpeter-kernel-for-the-lightest-pseudoscalar-mesons(843dbe92-f724-4c69-9ef1-c3e07b780600).html