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

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. The masses of the baryon decuplet turn out to be improved, compared to those with the first-order corrections. The mass of the N^* as a member of the baryon antidecuplet is obtained as M_{n^*}=1687 MeV, which is in agreement with the recent experimental data. The pion-nucleon sigma term becomes Σ_{πN}=(50.5\pm 5.4) MeV.

9 pages. No figure. arXiv admin note: substantial text overlap with arXiv:1010.3792

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Cited by in corpus (4)

• Pentaquark and Tetraquark states
• Hyperon Semileptonic decay constants with flavor SU(3) symmetry breaking
• Meson-baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking
• New narrow nucleon resonances $N^{\ast }(1685)$ and $N^{\ast }(1726)$ within the chiral quark-soliton model