出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：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.
