Paris NN Potential and the Possible Resonance States of pp

ZENG Zhuo-Quan; SHEN Peng-Nian; DING Yi-Bing; JIAN Huan-Qing; LI Xue-Qian; LU Xiao

Chinese Physics C> 2005, Vol. 29> Issue(6) : 537-542

Paris NN Potential and the Possible Resonance States of pp

Institute of High Energy Physics,CAS,Beijing,100049,China2 The Graduate School of the Chinese Academy of Sciences,Beijing,10049,China3 Department of Physics,Nankai University,Tianjin,300071,China4 Department of Physics,Guangxi Normal University,Guilin 541004,China

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Abstract：
By solving the complex Schrodinger equation with the phenomenological Paris optical potential between nucleon (N) and antinucleon(N)，the near-threshold binding and resonant behaviors of the pp system are studied. As the result, a 13P0 resonance state of pp is obtained. It is found that the energy and width of the state are compatible with the BES data in which the observed enhancement in the J/ψ→γpp decay was fitted by a Breit-Wigner (B-W) formula either in the S-wave or in the P-wave. The indication of the results and the suggestion for the further theoretical investigation are discussed.

References

[1]

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ZENG Zhuo-Quan, SHEN Peng-Nian, DING Yi-Bing, JIAN Huan-Qing, LI Xue-Qian and LU Xiao. Paris NN Potential and the Possible Resonance States of pp[J]. Chinese Physics C, 2005, 29(6): 537-542.

ZENG Zhuo-Quan, SHEN Peng-Nian, DING Yi-Bing, JIAN Huan-Qing, LI Xue-Qian and LU Xiao. Paris NN Potential and the Possible Resonance States of pp[J]. Chinese Physics C, 2005, 29(6): 537-542. shu

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Received: 2005-02-22
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

Paris NN Potential and the Possible Resonance States of pp

Corresponding author: ZENG Zhuo-Quan,

Institute of High Energy Physics,CAS,Beijing,100049,China2 The Graduate School of the Chinese Academy of Sciences,Beijing,10049,China3 Department of Physics,Nankai University,Tianjin,300071,China4 Department of Physics,Guangxi Normal University,Guilin 541004,China

Received Date: 2005-02-22

Accepted Date: 1900-01-01

Available Online: 2005-06-05

Abstract: By solving the complex Schrodinger equation with the phenomenological Paris optical potential between nucleon (N) and antinucleon(N)，the near-threshold binding and resonant behaviors of the pp system are studied. As the result, a 13P0 resonance state of pp is obtained. It is found that the energy and width of the state are compatible with the BES data in which the observed enhancement in the J/ψ→γpp decay was fitted by a Breit-Wigner (B-W) formula either in the S-wave or in the P-wave. The indication of the results and the suggestion for the further theoretical investigation are discussed.

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Paris NN Potential and the Possible Resonance States of pp

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通讯作者: 陈斌, bchen63@163.com

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