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arXiv · 1309.3380

Lowest-lying octet baryon masses in covariant baryon chiral perturbation theory

Xiu-Lei Ren·Lisheng Geng·Jie Meng·Hiroshi Toki
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Abstract

We report on a systematic study of the ground-state octet baryon masses in the covariant baryon chiral perturbation theory with the extended-on-mass-shell renormalization scheme up to next-to-next-to-next-to-leading order, taking into account the contributions of the virtual decuplet baryons. A reasonable description of the lattice results is achieved by fitting simultaneously all the publicly available $n_f = 2+1$ lattice QCD data. It confirms that the various lattice simulations are consistent with each other. We stress that a self-consistent treatment of finite-volume corrections is important to obtain a $χ^2/\rm{d.o.f.}$ about 1.

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Xiu-Lei Ren, Lisheng Geng, Jie Meng, Hiroshi Toki. 2013-09-13. Lowest-lying octet baryon masses in covariant baryon chiral perturbation theory. https://doi.org/10.1142/s2010194514600684

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