Investigating the tetraquark structure of the new mesons

Details Investigating the tetraquark structure of the new mesons Investigating the tetraquark structure of the new mesons

2006-09-19

arxiv.org/abs/hep-ph/0609184v1

Braz.J.Phys.37:56-58,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages 1 eps figure, proceedings of the XVIII Workshop on Hadronic Interactions (RETINHA-18) Sao Paulo-SP

Scientific paper

10.1590/S0103-97332007000100018

Using the QCD sum rule approach we investigate the possible four-quark structure of the recently observed mesons $D_{sJ}^{+}(2317)$, firstly observed by BaBaR, X(3872), firstly observed by BELLE and $D_0^{*0}(2308)$ observed by BELLE. We use diquark-antidiquark currents and work in full QCD, without relying on $1/m_c$ expansion. Our results indicate that a four-quark structure is acceptable for these mesons.

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