as a tetraquark state with QCD sum rules in heavy quark limit

✍ Scribed by Zhi-Gang Wang; Shao-Long Wan

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 146 KB
• Volume: 778
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2006.07.041

✦ Synopsis

In this article, we take the point of view that the charmed scalar meson D s0 (2317) be a tetraquark state and devote to calculate its mass within the framework of the QCD sum rules approach in the heavy quark limit. The numerical values for the mass of the D s0 (2317) are consistent with the experimental data, there must be some tetraquark component in the scalar meson D s0 (2317). Detailed discussions about the threshold parameter and Borel parameter for the multiquark states are also presented.