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P-wave charmonium decays into baryon and antibaryon pairs in quark pair creation model

  • R. G. PingEmail author
  • B. S. Zou
  • H. C. Chiang
Article

Abstract.

A simple quark pair creation model is introduced to study exclusive decays of χ{c_J} into baryon-antibaryon pairs. With this simple model, some exclusive decay processes, for example, χ{c0}B¯ (B = Λ,Σ0-) are investigated and their decay widths are evaluated by inclusion of the properties of outgoing baryons, and the results show that the strengthened decay channels χ{c_J} → Λ¯(J = 0, 2) are easily understood by considering only the color singlet contribution of P-wave charmonium.

PACS.

13.25.Gv Decays of J/ψ, ϒ, and other quarkonia 12.39.Jh Nonrelativistic quark model 14.20.Jn Hyperons 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2004

Authors and Affiliations

  1. 1.CCAST (World Lab.)BeijingPRC
  2. 2.Institute of High Energy PhysicsChinese Academy of SciencesBeijingPRC
  3. 3.Institute of Theoretical PhysicsChinese Academy of SciencesBeijingPRC
  4. 4.Center of Theoretical Nuclear PhysicsNational Laboratory of Heavy Ion AcceleratorLanzhouPRC

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