Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-04-30
PoS EFT09:024,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pag. Contribution to the proceedings of the International Workshop on Effective Field Theories: from the pion to the upsilon
Scientific paper
We report a calculation of the baryon magnetic moments using covariant chiral perturbation theory within the extended-on-mass-shell renormalization scheme including intermediate octet and decuplet contributions. By fitting the two available low-energy constants, we improve the Coleman-Glashow description of the data when we include the leading SU(3) breaking effects coming from the lowest-order loops. We compare with previous attempts at the same order using heavy-baryon and covariant infrared chiral perturbation theory, and discuss the source of the differences.
Alvarez-Ruso Luis
Camalich Martin J.
Geng Li Sheng
Vicente Vacas M. J.
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