The 27-plet Baryons from Chiral Soliton Models

Abstract

We use the perturbation method to calculate the masses and widths for 27-plet baryons with spin 3/2 from chiral soliton models. According to the masses and quantum numbers, we find all the candidates for non-exotic members of 27-plet. The calculation of the widths shows that these candidates manifest an approximate symmetry of the 27 representation of the SU(3) group, and the quantum numbers of $\Xi (1950)$ seem to be $I(J^P)=1/2({3/2}^{+})$. Up to leading order of the strange quark mass, we find that the exotic members have widths much larger than those of the anti-decuplet members.

arXiv comment4 pages in Revtex format, 1 figure, version to appear in PRD

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Cited by in corpus (20)

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• Pentaquark Theta^+(1540) production in gamma N --> K Anti-K N
• Pentaquark baryons in SU(3) quark model
• Why the Theta+ is seen in some experiments and not in others - a possible explanation
• Present status on experimental search for pentaquarks
• Search for ${\Theta }^{++}$ Pentaquarks in the Exclusive Reaction $\gamma p\to K^{+}{K}^{-}p$
• Search for Higher Flavor Multiplets in Partial Wave Analyses
• Heavy Quark Analogues of the Theta and Their Excitations
• Phenomenological constraints on the Jaffe-Wilczek model of pentaquarks
• Moments of inertia, nucleon axial-vector coupling, the {\bf 8}, {\bf 10}, $\overline{10}$ and ${27}_{3/2}$ mass spectrums and the higher SU(3)_f representation mass splittings in the Skyrme model
• Baryon Spectrum in Large N(C) Chiral Soliton and in Quark Models
• Systematic study of pentaquark states: $qqq-q\bar{q}$ configuration
• Search for Pentaquarks in the Hadronic Decays of the Z Boson with the DELPHI Detector at LEP
• Parity of Anti-Decuplet Baryons Revisited from Chiral Soliton Models
• The 35-plet Baryons from Chiral Soliton Models
• Beyond CP violation: hadronic physics at BaBar
• The Skyrme model predictions for the ${27}_{J=3/2}$ mass spectrum and the ${27}_{3/2}$-$\overline{10}$ mass splittings
• The 27-plet baryons with spin 3/2 under SU(3) symmetry