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Mass splittings of the baryon decuplet and antidecuplet with second-order flavor symmetry breakings within a chiral soliton model

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Abstract

We revisit the mass splittings of SU(3) baryons, taking into account the second-order effects of isospin and SU(3) flavor symmetry breakings within the framework of a chiral soliton model. Compared to the baryon masses with the first-order corrections, those of the baryon decuplet turn out to be improved. The mass of the N* as a member of the baryon antidecuplet is obtained as M N * = (1689.8 ± 6.8) MeV, which is in agreement with the recent experimental data. The pion-nucleon sigma term becomes Σ πN = (50.5 ± 5.4) MeV.

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Authors and Affiliations

  1. Center for High Energy Physics and Department of Physics, Kyungpook National University, Daegu, 702-701, Korea

    Ghil-Seok Yang

  2. Department of Physics, Inha University, Incheon, 402-751, Korea

    Hyun-Chul Kim

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  1. Ghil-Seok Yang
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  2. Hyun-Chul Kim
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Correspondence to Ghil-Seok Yang.

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Yang, GS., Kim, HC. Mass splittings of the baryon decuplet and antidecuplet with second-order flavor symmetry breakings within a chiral soliton model. Journal of the Korean Physical Society 61, 1956–1964 (2012). https://doi.org/10.3938/jkps.61.1956

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  • DOI: https://doi.org/10.3938/jkps.61.1956

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