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HK: Fachverband Physik der Hadronen und Kerne
HK 40: Theorie
HK 40.4: Talk
Thursday, March 13, 2008, 17:30–17:45, 2F
Charmonium spectrum including higher spin and exotic states — •Christian Ehmann and Gunnar Bali — Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany
We study the charmonium spectrum including higher spin and exotic states. We use the Sheikholeslami-Wilson (clover) action for Nf=2 sea quarks as well as for the charm valence quark. In order to access excited states we apply a variational method with a basis of highly optimized operators. Furthermore we include disconnected diagrams by utilizing improved all-to-all-propagators.
This work was supported by BMBF and GSI.