Octet baryon masses in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
Octet baryon masses in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
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次次次次次次先导共变重子手性微扰理论中的八重子质量
DOI：
10.1007/jhep12(2012)073
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发表时间：
2012-09
期刊：
影响因子：
--
通讯作者：
Toki, H.
中科院分区：
文献类型：
--
作者：
Geng, L. S.;Camalich, J. Martin;Meng, J.;Toki, H.
We study the ground-state octet baryon masses and sigma terms using the covariant baryon chiral perturbation theory (ChPT) with the extended-on-mass-shell (EOMS) renormalization scheme up to next-to-next-to-next-to-leading order (N 3 LO). By adjusting the available 19 low-energy constants (LECs), a reasonable fit of the n f= 2+ 1 lattice quantum chromodynamics (LQCD) results from the PACS-CS, LHPC, HSC, QCDSF-UKQCD and NPLQCD collaborations is achieved. Finite-volume corrections to the lattice data are calculated self-consistently. Our study shows that the N 3 LO BChPT describes better the light quark mass evolution of the lattice data than the NNLO BChPT does and the various lattice simulations seem to be consistent with each other. We also predict the pion and strangeness sigma terms of the octet baryons using the LECs determined in the fit of their masses. The predicted pion-and strangeness-nucleon sigma terms are σ πN= 43 (1)(6) MeV and σ sN= 126 (24)(54) MeV, respectively.
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DOI：
10.1103/physrevd.79.054502
发表时间：
2008-06
期刊：
--
影响因子：
--
作者：
A. Walker-Loud;Huey-Wen Lin;D. Richards;R. Edwards;M. Engelhardt;G. Fleming;P. Hägler;B. Musch;M. Lin;H. Meyer;J. Negele;A. Pochinsky;M. Procura;S. Syritsyn;C. Morningstar;K. Orginos;D. Renner;W. Schroers
通讯作者：
A. Walker-Loud;Huey-Wen Lin;D. Richards;R. Edwards;M. Engelhardt;G. Fleming;P. Hägler;B. Musch;M. Lin;H. Meyer;J. Negele;A. Pochinsky;M. Procura;S. Syritsyn;C. Morningstar;K. Orginos;D. Renner;W. Schroers
DOI：
10.1016/j.nuclphysa.2004.10.007
发表时间：
2004-05
期刊：
Nuclear Physics
影响因子：
--
作者：
A. Walker-Loud
通讯作者：
A. Walker-Loud
DOI：
10.22323/1.091.0124
发表时间：
2009-10
期刊：
--
影响因子：
--
作者：
H. Ohki;S. Aoki;H. Fukaya;S. Hashimoto;T. Kaneko;H. Matsufuru;J. Noaki;T. Onogi;E. Shintani;N. Yamada
通讯作者：
H. Ohki;S. Aoki;H. Fukaya;S. Hashimoto;T. Kaneko;H. Matsufuru;J. Noaki;T. Onogi;E. Shintani;N. Yamada
影响因子：
8.6
作者：
J. Giedt;A. Thomas;R. Young
通讯作者：
J. Giedt;A. Thomas;R. Young
DOI：
--
发表时间：
2004-12
期刊：
--
影响因子：
--
作者：
M. Göckeler
通讯作者：
M. Göckeler