Research of SU(3) 27-plet

  • Exotics belong to high multiplet of SU(3), so one can understand them by researching their non-exotic partners in the same multiplet. Here the possible 27-plet from flavor SU(3) symmetry are investigated. By fitting the mass spectrum and calculating the two-body partial hadronic decay widths of members, two set of 27-plet baryons with different parities are found. For the mass spectrum, all non-exotic members have their candidates in PDG except for a new Λ(1780). For the decay widths, the computing results show the approximate flavor SU(3) symmetry. The further analyzing and comparing with the results from other theoretical models can support the rationality of the 27-plet assignment.
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  • [1] . Gell-Mann M. Phys. Lett., 1964, B8: 2142. Manohar A V. Nucl. Phys., 1984, B248: 19; Chemtob M.Nucl. Phys., 1985, B256: 600; Walliser H. Nucl. Phys.,1992, A548: 649; YAN M L, MENG X H. Commun. Theor.Phys., 1995, 24: 435; Diakonov D, Petrov V, Polyakov M.Z. Phys., 1997, A359: 3053. LEPS, Nakano T et al. Phys. Rev. Lett., 2003, 91: 0120024. GAO H, MA B Q. Mod. Phys. Lett., 1999, A14: 23135. XIE S Q, ZHANG Q R. HEP NP, 1982, 6(6): 732|736(in Chinese); XIE S Q, ZHANG Q R. Phys. Lett., 1984,B143: 441; XIE S Q. J. Phys., 1989, G15: 287(谢淑琴, 张启仁. 高能物理与核物理, 1982, 6(6): 732|736)6. Borisyuk D, Faber M, Kobushkin A. hep-ph/03073707. WU B, MA B Q. Phys. Rev., 2004, D69: 0775018. WU B, MA B Q. Phys. Rev., 2004, B586: 629. Kanada-En'yo Y, Morimatsu O, Nishikawa T. Phys. Rev.,2005, C71: 04520210. Nishikawa T, Kanada-En'Yo Y, Morimatsu O et al. Phys.Rev., 2005, D71: 07600411. HUANG H Z. Int. J. Mod. Phys., 2006, A21: 85512. Particle Data Group(Eidelman S et al). Phys. Lett., 2004,B592: 113. de Swart J J. Rev. Mod. Phys., 1963, 35: 91614. Samlos N P, Goldberg M, Meadows B T. Rev. Mod. Phys.,1974, 46: 115. Guzey V, Polyakov M V. hep-ph/051235516. Oh Y, Kim H. Phys. Rev., 2004, D70: 09402217. Rushbrooke J G. Phys. Rev., 1966, 143: 134518. Carruthers P. Phys. Rev., 1966, 152: 1345
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ZHOU Qi-Hua and MA Bo-Qiang. Research of SU(3) 27-plet[J]. Chinese Physics C, 2007, 31(1): 1-6.
ZHOU Qi-Hua and MA Bo-Qiang. Research of SU(3) 27-plet[J]. Chinese Physics C, 2007, 31(1): 1-6. shu
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Received: 2006-04-13
Revised: 2006-06-12
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Research of SU(3) 27-plet

    Corresponding author: MA Bo-Qiang,
  • School of Physics, Peking University, Beijing 100871, China

Abstract: Exotics belong to high multiplet of SU(3), so one can understand them by researching their non-exotic partners in the same multiplet. Here the possible 27-plet from flavor SU(3) symmetry are investigated. By fitting the mass spectrum and calculating the two-body partial hadronic decay widths of members, two set of 27-plet baryons with different parities are found. For the mass spectrum, all non-exotic members have their candidates in PDG except for a new Λ(1780). For the decay widths, the computing results show the approximate flavor SU(3) symmetry. The further analyzing and comparing with the results from other theoretical models can support the rationality of the 27-plet assignment.

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