https://doi.org/10.1140/epjc/s10052-014-2754-1
Regular Article - Theoretical Physics
Baryon chiral perturbation theory with Wilson fermions up to
and discretization effects of latest
LQCD octet baryon masses
1
School of Physics and Nuclear Energy Engineering, Beihang University, Beijing, 100191, China
2
International Research Center for Nuclei and Particles in the Cosmos, Beihang University, Beijing, 100191, China
3
Physik Department, Technische Universität München, 85747 , Garching, Germany
4
State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, 100871, China
5
Department of Physics, University of Stellenbosch, Stellenbosch, 7602, South Africa
* e-mail: lisheng.geng@buaa.edu.cn
Received:
4
December
2013
Accepted:
21
January
2014
Published online:
19
February
2014
We construct the chiral Lagrangians relevant in studies of the ground-state octet baryon masses up to by taking into account discretization effects. We calculate the masses up to
in the extended-on-mass-shell scheme. As an application, we study the latest
LQCD data on the ground-state octet baryon masses from the PACS-CS, QCDSF-UKQCD, HSC, and NPLQCD Collaborations. It is shown that the discretization effects for the studied LQCD simulations are at the order of 1–2 % for lattice spacings up to
fm and the pion mass up to 500 MeV.
© The Author(s), 2014