Is D<SUB>s</SUB>(2700) a charmed tetraquark state?

WANG Zhi-Gang

doi:10.1088/1674-1137/32/10/006

Chinese Physics C> 2008, Vol. 32> Issue(10) : 797-802 DOI: 10.1088/1674-1137/32/10/006

Is D_s(2700) a charmed tetraquark state?

WANG Zhi-Gang ^,

Department of Physics, North China Electric Power University, Baoding 071003, China

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Abstract：
In this article, we assume that the D_s(2700) is a tetraquark state, which consists of a scalar diquark and a vector antidiquark, and calculate its mass with the QCD sum rules. The numerical result indicates that the mass of the vector charmed tetraquark state is about M_V=(3.75±0.18) GeV or M_V=(3.71±0.15) GeV from different sum rules, which is about 1 GeV larger than the experimental data. Such tetraquark omponent should be very small in the D_s(2700).

References

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WANG Zhi-Gang. Is D_s(2700) a charmed tetraquark state?[J]. Chinese Physics C, 2008, 32(10): 797-802. doi: 10.1088/1674-1137/32/10/006

WANG Zhi-Gang. Is D_s(2700) a charmed tetraquark state?[J]. Chinese Physics C, 2008, 32(10): 797-802. doi: 10.1088/1674-1137/32/10/006 shu

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Received: 2007-12-17
Revised: 2008-02-18

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Is D_s(2700) a charmed tetraquark state?

Corresponding author: WANG Zhi-Gang,

Department of Physics, North China Electric Power University, Baoding 071003, China

Received Date: 2007-12-17

Accepted Date: 2008-02-18

Available Online: 2008-10-05

Abstract:

In this article, we assume that the D_s(2700) is a tetraquark state, which consists of a scalar diquark and a vector antidiquark, and calculate its mass with the QCD sum rules. The numerical result indicates that the mass of the vector charmed tetraquark state is about M_V=(3.75±0.18) GeV or M_V=(3.71±0.15) GeV from different sum rules, which is about 1 GeV larger than the experimental data. Such tetraquark omponent should be very small in the D_s(2700).

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Is Ds(2700) a charmed tetraquark state?

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Is D_s(2700) a charmed tetraquark state?

Is D_s(2700) a charmed tetraquark state?