Electromagnetic self-energies of pseudoscalar mesons and Dashen's theorem

Journal Article · Sun Feb 28 23:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.2089· OSTI ID:6900294

Donoghue, J F; Holstein, B R ^[1]; Wyler, D ^[2]

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1. Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003 (United States)
2. Institut fur Theoretische Physik, Universitat Zurich, CH-8001 Zurich (Switzerland)

The calculation of the electromagnetic mass shifts of [pi], [ital K] mesons is studied using a model incorporating chiral symmetry and vector dominance. Significant SU(3) breaking to Dashen's theorem is found, allowing a resolution of the long-standing discrepancy between the quark-mass ratio ([ital m][sub [ital d]][minus][ital m][sub [ital u]])/[ital m][sub [ital s]] found from [eta][r arrow]3[pi] decay and that from the [ital K][sup +]-[ital K][sup 0] mass difference.

• OSTI ID: 6900294
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:5; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662120* -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662230 -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BASIC INTERACTIONS
BOSONS
CHIRAL SYMMETRY
COMPTON EFFECT
DECAY
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY
FERMIONS
FIELD THEORIES
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
KAONS
KAONS NEUTRAL
KAONS PLUS
LIE GROUPS
MASS DIFFERENCE
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SCATTERING
SCATTERING AMPLITUDES
SELF-ENERGY
STRANGE MESONS
STRANGE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
VECTOR DOMINANCE MODEL