Investigating the tetraquark structure of the new mesons
High Energy Physics - Phenomenology
2011-08-04 v1
Abstract
Using the QCD sum rule approach we investigate the possible four-quark structure of the recently observed mesons , firstly observed by BaBaR, X(3872), firstly observed by BELLE and observed by BELLE. We use diquark-antidiquark currents and work in full QCD, without relying on expansion. Our results indicate that a four-quark structure is acceptable for these mesons.
Cite
@article{arxiv.hep-ph/0609184,
title = {Investigating the tetraquark structure of the new mesons},
author = {M. Nielsen and F. S. Navarra and M. E. Bracco},
journal= {arXiv preprint arXiv:hep-ph/0609184},
year = {2011}
}
Comments
4 pages 1 eps figure, proceedings of the XVIII Workshop on Hadronic Interactions (RETINHA-18) Sao Paulo-SP