D and D_s in mass loaded flux tube

Details D and D_s in mass loaded flux tube D and D_s in mass loaded flux tube

2008-05-30

arxiv.org/abs/0805.4764v2

Chin.Phys.C34:16-21,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 2 tables, RevTex, some references added and some typos corrected

Scientific paper

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 well described 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 $1^-(1^3D_1)$ and the $3^-(1^3D_3)$ $D_s$ agree well with those of recently observed $D_{s1}(2700)^{\pm}$ and $D_{sJ}(2860)$, respectively.

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