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Dynamical symmetry breaking and the sigma-meson mass in quantum chromodynamics
journal contribution
posted on 2023-05-18, 05:01 authored by Robert DelbourgoRobert Delbourgo, Scadron, MDThe spontaneous breakdown of chiral symmetry is analyzed dynamically via bound-state Bethe-Salpeter equations. While in general spontaneous mass generation is linked to a massless 0− pion and no specific constraint on a massive 0+ meson, for the particular theory of asymptotically free QCD it is shown that a 0+ σ meson should exist with mass mσ≈600 to 700 MeV.
History
Publication title
Physical Review LettersVolume
48Issue
6Pagination
379-382ISSN
0031-9007Department/School
School of Natural SciencesPublisher
American Physical SocPlace of publication
One Physics Ellipse, College Pk, USA, Md, 20740-3844Repository Status
- Restricted