Baryon Resonance in χ<SUB>c0</SUB>→BBMM Decays

PING Rong-Gang; YUAN Chang-Zheng

Chinese Physics C> 2006, Vol. 30> Issue(8) : 731-735

Baryon Resonance in χ_c0→BBMM Decays

PING Rong-Gang ^, ,
YUAN Chang-Zheng

Institute of High Energy Physics, CAS, Beijing 100049, China

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Abstract：
The exclusive decays of χ_c0 into multi-body BBMM(B:baryon,M:meson)are investigated based on the SU(3) symmetry. The transitional amplitudes of χ_c0→BBMM are given in terms of the isospin coupling constant. Based on these amplitudes, it is found that N^* resonances make a relatively large contribution to the χ_c0→NNππ, which might serve as a channel to study N^* resonance in data analysis.

References

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. Kpke L, Wermes N. Phys. Rep., 1989, 174: 672. Lepage G P, Brodsky S J. Phys. Rev., 1980, D22: 21573. Brodsky S J, Lepage G P. Phys. Rev., 1981, D24: 28484. Eidelman S et al(Particle Data Group). Phys. Lett., 2004,B592: 595. BAI J Z et al(BES Collabration). Phys. Rev., 2003, D67:112001-16. Ablikim M et al(BES Collabration). Phys. Lett., 2005,B630: 217. Wong S M H. Eur. Phys. J., 2000, C14: 643; PING R G,ZOU B S, Chiang H C. Eur. Phys. J., 2005, A23: 1298. de Swart J J. Rev. Mod. Phys., 1963, 35: 916; Rabl V etal. J. Math. Phys., 1975, 16: 2494

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PING Rong-Gang and YUAN Chang-Zheng. Baryon Resonance in χ_c0→BBMM Decays[J]. Chinese Physics C, 2006, 30(8): 731-735.

PING Rong-Gang and YUAN Chang-Zheng. Baryon Resonance in χ_c0→BBMM Decays[J]. Chinese Physics C, 2006, 30(8): 731-735. shu

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Received: 2005-12-08
Revised: 2006-03-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Baryon Resonance in χ_c0→BBMM Decays

PING Rong-Gang ^,
YUAN Chang-Zheng

Corresponding author: PING Rong-Gang,

Institute of High Energy Physics, CAS, Beijing 100049, China

Received Date: 2005-12-08
Accepted Date: 2006-03-01
Available Online: 2006-08-05

Abstract: The exclusive decays of χ_c0 into multi-body BBMM(B:baryon,M:meson)are investigated based on the SU(3) symmetry. The transitional amplitudes of χ_c0→BBMM are given in terms of the isospin coupling constant. Based on these amplitudes, it is found that N^* resonances make a relatively large contribution to the χ_c0→NNππ, which might serve as a channel to study N^* resonance in data analysis.