Quarkonia and their transitions
E. EichtenFermilab, P.O. Box 500, Batavia, Illinois 60510, USAStephen GodfreyFermilab, P.O. Box 500, Batavia, Illinois 60510, USAHanna MahlkeFermilab, P.O. Box 500, Batavia, Illinois 60510, USAJonathan L. RosnerFermilab, P.O. Box 500, Batavia, Illinois 60510, USA
2008en
ABI
Abstract
Valuable data on quarkonia (the bound states of a heavy quark $Q=c,b$ and the corresponding antiquark) have recently been provided by a variety of sources, mainly ${e}^{+}{e}^{\ensuremath{-}}$ collisions, but also hadronic interactions. This permits a thorough updating of the experimental and theoretical status of electromagnetic and strong transitions in quarkonia. The $Q\overline{Q}$ transitions to other $Q\overline{Q}$ states are discussed, with some reference to processes involving $Q\overline{Q}$ annihilation.
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Cited by 30 references