One Interpretation for Recent BES Observation

HAO Gang; QIAO Cong-Feng; ZHANG Ai-Lin

Chinese Physics C> 2007, Vol. 31> Issue(9) : 840-843

One Interpretation for Recent BES Observation

Department of Physics, Graduate University of Chinese Academy of Sciences, Beijing 100049, China2 Department of Physics, Shanghai University, Shanghai 200444, China

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Abstract：
Motivated by the recent BES observation of the pp enhancement near threshold in radiative J/ψ decays, X(1860) and X(1835), we choose the 0^－+ trigluonium state as a possible candidate and calculate its mass with QCD sum rules, which is found to be approximately in the region between 1.9GeV and 2.7GeV with some theoretical uncertainties. With the fact that the new BES resonance exhibits the behavior of this trigluon state, our analyses favor the baryonium-gluonium mixing picture for the BES observation.

References

[1]

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HAO Gang, QIAO Cong-Feng and ZHANG Ai-Lin. One Interpretation for Recent BES Observation[J]. Chinese Physics C, 2007, 31(9): 840-843.

HAO Gang, QIAO Cong-Feng and ZHANG Ai-Lin. One Interpretation for Recent BES Observation[J]. Chinese Physics C, 2007, 31(9): 840-843. shu

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Received: 2007-04-25
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

One Interpretation for Recent BES Observation

Corresponding author: QIAO Cong-Feng,

Department of Physics, Graduate University of Chinese Academy of Sciences, Beijing 100049, China2 Department of Physics, Shanghai University, Shanghai 200444, China

Received Date: 2007-04-25

Accepted Date: 1900-01-01

Available Online: 2007-09-05

Abstract: Motivated by the recent BES observation of the pp enhancement near threshold in radiative J/ψ decays, X(1860) and X(1835), we choose the 0^－+ trigluonium state as a possible candidate and calculate its mass with QCD sum rules, which is found to be approximately in the region between 1.9GeV and 2.7GeV with some theoretical uncertainties. With the fact that the new BES resonance exhibits the behavior of this trigluon state, our analyses favor the baryonium-gluonium mixing picture for the BES observation.

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One Interpretation for Recent BES Observation

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