Pion and Kaon Masses and Pion Form Factors from Dynamical Chiral-Symmetry Breaking with Light Constituent Quarks

Journal Article · Tue Feb 27 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2714398· OSTI ID:21056835

Scadron, Michael D ^[1]; Kleefeld, Frieder; Rupp, George ^[2]

---

1. Physics Department, University of Arizona, Tucson, AZ 85721 (United States)
2. Centro de Fisica das Interaccoes Fundamentais, Instituto Superior Tecnico, Edificio Ciencia, P-1049-001 Lisboa (Portugal)

Light constituent quark masses and the corresponding dynamical quark masses are determined by data, the quark-level linear {sigma} model, and infrared QCD. This allows to define effective nonstrange and strange current quark masses, which reproduce the experimental pion and kaon masses very accurately, by simple additivity. In contrast, the usual nonstrange and strange current quarks employed by the Particle Data Group and Chiral Perturbation Theory do not allow a straightforward quantitative explanation of the pion and kaon masses.

• OSTI ID: 21056835
• Journal Information: AIP Conference Proceedings, Vol. 892, Issue 1; Conference: QCHS7: 7. conference on quark confinement and the hadron spectrum, Ponta Delgada, Acores (Portugal), 2-7 Sep 2006; Other Information: DOI: 10.1063/1.2714398; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
FORM FACTORS
KAONS
PERTURBATION THEORY
PIONS
QUANTUM CHROMODYNAMICS
REST MASS
S QUARKS
SIGMA MODEL
SYMMETRY BREAKING