Baryon magnetic moments in large-N_c chiral perturbation theory

Abstract

The baryon magnetic and transition magnetic moments are computed in heavy baryon chiral perturbation theory in the large-N_c limit, where N_c is the number of colors. One-loop nonanalytic corrections of orders m_q^{1/2} and m_q ln m_q are incorporated into the analysis, where contributions of both intermediate octet and decuplet baryon states are explicitly included. Expressions are obtained in the limit of vanishing baryon mass differences and compared with the current experimental data. Furthermore, a comparison with conventional heavy baryon chiral perturbation theory is carried out for three light quarks flavors and at the physical value N_c=3.

RevTex4, 36 pages, 2 eps figures; corrected typos; results agree with the ones of Ref. [26]

References in corpus (7)

• Chiral Perturbation Theory and Baryon Properties
• Leading SU(3)-breaking corrections to the baryon magnetic moments in Chiral Perturbation Theory
• Light baryon magnetic moments and N -> Delta gamma transition in a Lorentz covariant chiral quark approach
• Electromagnetic structure of the lowest-lying decuplet resonances in covariant chiral perturbation theory
• Sum rules for baryon decuplet magnetic moments
• Octet baryon magnetic moments from QCD sum rules
• Renormalization of the baryon axial vector current in large-N_c chiral perturbation theory

Cited by in corpus (21)

• Electromagnetic form factors of the Delta with D-waves
• Electromagnetic form factors of spin 1/2 doubly charmed baryons
• Evidence for non-analytic light quark mass dependence in the baryon spectrum
• Magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet baryons using effective quark masses in chiral constituent quark model
• Spectroscopy of Light Baryons: $\Delta$ Resonances
• Renormalization of the baryon axial vector current in large-N_c chiral perturbation theory: Effects of the decuplet-octet mass difference and flavor symmetry breaking
• Baryon Magnetic Moments in the 1/N_c Expansion with Flavor Symmetry Breaking
• Baryon resonances in large $N_c$ QCD
• Baryon magnetic moments in large-N_c chiral perturbation theory: Effects of the decuplet-octet mass difference and flavor symmetry breaking
• The baryon vector current in the combined chiral and 1/Nc expansions
• Transition magnetic moments of $J^P={\frac{3}{2}}^{+}$ decuplet to $J^P={\frac{1}{2}}^{+}$ octet baryons in the chiral constituent quark model
• Dirac form factors and electric charge radii of baryons in the combined chiral and 1/N_c expansions
• Magnetic moments of JP = 3/2+ decuplet baryons using statistical model
• Two-pion exchange as a leading-order contribution in chiral effective field theory
• Baryon axial vector current in large-$N_c$ chiral perturbation theory: Complete analysis for $N_c=3$
• The SU(3) Vector Currents in BChPT x 1/Nc
• S-wave baryon nonleptonic decay amplitude in large-N_c chiral perturbation theory
• Radiative pion photoproduction in covariant chiral perturbation theory
• Baryon magnetic moment in large-$N_c$ chiral perturbation theory: Complete analysis for $N_c=3$
• Baryon quadrupole moment in the 1/N(c) expansion of QCD
• Effect of the Casimir energy on the bag model phenomenology of light hadrons