Advertisement

Baryon masses in large Nc chiral perturbation theory

  • Yongseok Oh
  • W. Weise
Hadron physics

Abstract:

We analyse the baryon mass spectrum in a framework which combines the 1/Nc expansion with chiral perturbation theory. Meson loop contributions involving the full SU(3) octet of pseudoscalar Goldstone bosons are evaluated, and the influence of explicit chiral and flavor symmetry breaking by non-zero and unequal quark masses is investigated. We also discuss sigma terms and the strangeness contribution to the nucleon mass.

PACS: 14.20.-c Baryons (including antiparticles) – 11.15.Pg Expansions for large numbers of components (e.q., 1/Nc expansions) – 12.39.Fe Chiral Lagrangians 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Yongseok Oh
    • 1
  • W. Weise
    • 2
  1. 1.Physik-Department, Technische Universität München, D-85747 Garching, GermanyDE
  2. 2.Physik-Department, Technische Universität München, D-85747 Garching, GermanyDE

Personalised recommendations