Quark mass dependence of the ground-state octet baryons in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory

Autor:	Ren, X. -L., Geng, L. S., Camalich, J. Martin, Meng, J., Toki, H.
Rok vydání:	2012
Předmět:	Nuclear Theory High Energy Physics - Lattice High Energy Physics - Phenomenology
Zdroj:	Few-Body Systems (2013)
Druh dokumentu:	Working Paper
DOI:	10.1007/s00601-012-0581-1
Popis:	We report on a recent study of the ground-state octet baryon masses using the covariant baryon chiral perturbation theory with the extended-on-mass-shell renormalization scheme up to next-to-next-to-next-to-leading order. By adjusting the available 19 low-energy constants, a good fit of the $n_f=2+1$ lattice quantum chromodynamics results from the PACS-CS, LHPC, HSC, QCDSF-UKQCD and NPLQCD collaborations is achieved. Comment: 4 pages, 1 figure, presented by Lisheng Geng at the 20th International IUPAP Conference on Few-Body Problems in Physics, 20 - 25 August, 2012, Fukuoka, Japan
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1212.1855 Zobrazit plný text záznamu View this record from Arxiv