abstract

• The baryon magnetic and transition magnetic moments are computed in heavy baryon chiral perturbation theory in the large-Nc limit, where Nc is the number of colors. One-loop nonanalytic corrections of orders mq1/2 and mqln mq 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 Nc=3. © 2009 The American Physical Society.

authors

• Flores Mendieta Rubén

publication date

• 2009-01-01

published in

• Physical Review D - Particles, Fields, Gravitation and Cosmology  Journal

Digital Object Identifier (DOI)

• 10.1103/PhysRevD.80.094014

start page

end page

volume

• 80

issue

• 9