Electromagnetic splitting for mesons and baryons using dressed constituent quarks

Abstract

Electromagnetic splittings for mesons and baryons are calculated in a formalism where the constituent quarks are considered as dressed quasiparticles. The electromagnetic interaction, which contains coulomb, contact, and hyperfine terms, is folded with the quark electrical density. Two different types of strong potentials are considered. Numerical treatment is done very carefully and several approximations are discussed in detail. Our model contains only one free parameter and the agreement with experimental data is reasonable although it seems very difficult to obtain a perfect description in any case.

14 pages, Revised published version

References in corpus (3)

• Light Meson Spectra and Instanton Induced Forces
• A unified meson-baryon potential
• Baryon spectra with instanton induced forces

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• Isospin mass differences of singly heavy baryons
• Open charm hadron spectroscopy at B-factories
• Status of isospin splittings in mesons and baryons
• Measurement of the Masses and Widths of the ${\Sigma }_c(2455{)}^{+}$ and ${\Sigma }_c(2520{)}^{+}$ Baryons