Journal of East China Normal University(Natural Science) >

2022 , Vol. 2022 >Issue 4: 103 - 113

DOI: https://doi.org/10.3969/j.issn.1000-5641.2022.04.010

Physics and Electronics

SU(3) covariant chiral effective theory and corrections to the octet baryon masses

  • Zhou LIU ,
  • Jifeng YANG
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  • School of Physics and Electronic Science, East China Normal University, Shanghai　200241, China

Received date: 2021-04-20

  Online published: 2022-07-19

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Abstract

In this paper, corrections to the octet baryon masses based on the strange quark contribution are calculated using the SU(3) covariant chiral effective theory. We find that the items violating chiral power counting rules are local and can be subtracted by local counterterms which leads to extended minimal subtraction ${(\text{E}}\overline {{\text{MS}}})$ scheme. In addition to the chiral contribution, relativistic correction items are also retained, which is meaningful for accurately calculating the corrections to baryon masses and analytical extrapolation.

Key words： covariant chiral effective field theory; octet baryons; chiral power counting rules; ${\text{E}}\overline {{\text{MS}}} $scheme

Cite this article

Zhou LIU , Jifeng YANG . SU(3) covariant chiral effective theory and corrections to the octet baryon masses[J]. Journal of East China Normal University(Natural Science), 2022 , 2022(4) : 103 -113 . DOI: 10.3969/j.issn.1000-5641.2022.04.010

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