Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-08-27
Nucl.Phys. A645 (1999) 587-603
Physics
High Energy Physics
High Energy Physics - Phenomenology
Eqn.(21), Table 7 corrected
Scientific paper
10.1016/S0375-9474(98)00620-4
The radiative spin-flip transition rates of heavy quarkonium states depend sensitively on the matrix elements of the effective confining interaction through the associated two-quark exchange current operator. The Hamiltonian model based on a scalar linear confining interaction with a single gluon exchange hyperfine term is shown to provide an adequate description of the $J/\psi\to \eta_c\gamma$ and $\psi(2S)\to \eta_c\gamma$ decay widths once the relativistic single quark magnetic moment operator is treated without approximation and the exchange current is taken into account. Predictions are given for the radiative spin-flip decay widths of the 1S,2S and 3S states of the $c\bar c$, $b\bar b$ and $B_c^+$ systems. In the B_c^+ system the gluon exchange current also contributes to the spin-flip transition rates.
Lahde Timo A.
Nyfalt C. J.
Riska} D. O.
No associations
LandOfFree
The Confining Interaction and Radiative Decays of Heavy Quarkonia does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Confining Interaction and Radiative Decays of Heavy Quarkonia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Confining Interaction and Radiative Decays of Heavy Quarkonia will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-281711