UNITARY SYMMETRY IN BARYON-ANTIBARYON SYSTEMS

Chen Xiao-tian; Yuan Tu-nan; Zhang Yu-shun; Li Yang-guo

Chinese Physics C> 1980, Vol. 4> Issue(4) : 445-454

UNITARY SYMMETRY IN BARYON-ANTIBARYON SYSTEMS

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Abstract：
In this paper, we assume that proton, neutron and Λ hyperon are the basic particleswhich belong to the fundamental triplet of the group SU₃. Thus baryonium are to beclassified in the representations of SU₃. Besides, the "original" mass difference be-tween Λ hyperon and nucleon exhibits the violation of unitary symmetry which causesthe splittings of energy levels and leads to the formations of the "unitary symmetricalenergy band". The analysis in this paper of the energy levels of B-B systems shows theexistence of the energy band. Furthermore, we find that the theoretical values obtainedare consistent with the experimental ones quite well.

References

[1]

I. S. Shapiro, Phys. Report, 35C(1978), 131.[2] K. Kilian and B. Pietrzpk, 7th International Conference on High-Energy Physics and Nuelear Structure (1977).[3] L.Montanet., CERN/EP/Phys., 77-22.[4] L. Montanet, CERN-To-124.[5] A. Apostolakis et al., Phys. Lett., 66B(1977),185.[6] XIX International Conference on High Enerngy Physics, (1978).

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Chen Xiao-tian, Yuan Tu-nan, Zhang Yu-shun and Li Yang-guo. UNITARY SYMMETRY IN BARYON-ANTIBARYON SYSTEMS[J]. Chinese Physics C, 1980, 4(4): 445-454.

Chen Xiao-tian, Yuan Tu-nan, Zhang Yu-shun and Li Yang-guo. UNITARY SYMMETRY IN BARYON-ANTIBARYON SYSTEMS[J]. Chinese Physics C, 1980, 4(4): 445-454. shu

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Received: 1979-04-21
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

UNITARY SYMMETRY IN BARYON-ANTIBARYON SYSTEMS

Received Date: 1979-04-21
Accepted Date: 1900-01-01
Available Online: 1980-08-05

Abstract: In this paper, we assume that proton, neutron and Λ hyperon are the basic particleswhich belong to the fundamental triplet of the group SU₃. Thus baryonium are to beclassified in the representations of SU₃. Besides, the "original" mass difference be-tween Λ hyperon and nucleon exhibits the violation of unitary symmetry which causesthe splittings of energy levels and leads to the formations of the "unitary symmetricalenergy band". The analysis in this paper of the energy levels of B-B systems shows theexistence of the energy band. Furthermore, we find that the theoretical values obtainedare consistent with the experimental ones quite well.