D and D<SUB>s</SUB> in mass loaded flux tube

SHAN Hong-Yun; ZHANG Ai-Lin

doi:10.1088/1674-1137/34/1/003

Chinese Physics C> 2010, Vol. 34> Issue(1) : 16-21 DOI: 10.1088/1674-1137/34/1/003

D and D_s in mass loaded flux tube

SHAN Hong-Yun ,
ZHANG Ai-Lin ^,

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Abstract：
Heavy-light hadrons are studied in a mass loaded flux tube model. The study indicates that the dynamics of mesons and baryons containing a c quark is described well by the mass loaded flux tube. The hypothesis of good diquark-antiquark degeneracy is found reasonable in heavy-light quark systems. The spectrum of charmed (D) and charmed strange (D_s) mesons is systematically computed. D and D_s in 1D multiplets are predicted to have lower masses in comparison with other theoretical predictions. The predicted masses of the 1^－(1³D₁) and the 3^－(1³D₃) D_s agree well with those of recently observed D_s1(2700)^± and D_sJ(2860), respectively.

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SHAN Hong-Yun and ZHANG Ai-Lin. D and D_s in mass loaded flux tube[J]. Chinese Physics C, 2010, 34(1): 16-21. doi: 10.1088/1674-1137/34/1/003

SHAN Hong-Yun and ZHANG Ai-Lin. D and D_s in mass loaded flux tube[J]. Chinese Physics C, 2010, 34(1): 16-21. doi: 10.1088/1674-1137/34/1/003 shu

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Received: 2009-03-13
Revised: 2009-04-15

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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

D and D_s in mass loaded flux tube

Corresponding author: ZHANG Ai-Lin,

Received Date: 2009-03-13

Accepted Date: 2009-04-15

Available Online: 2010-01-05

Abstract:

Heavy-light hadrons are studied in a mass loaded flux tube model. The study indicates that the dynamics of mesons and baryons containing a c quark is described well by the mass loaded flux tube. The hypothesis of good diquark-antiquark degeneracy is found reasonable in heavy-light quark systems. The spectrum of charmed (D) and charmed strange (D_s) mesons is systematically computed. D and D_s in 1D multiplets are predicted to have lower masses in comparison with other theoretical predictions. The predicted masses of the 1^－(1³D₁) and the 3^－(1³D₃) D_s agree well with those of recently observed D_s1(2700)^± and D_sJ(2860), respectively.

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D and D_s in mass loaded flux tube