1 research outputs found
Dielectron widths of the S-, D-vector bottomonium states
The dielectron widths of and vector decay
constants are calculated using the Relativistic String Hamiltonian with a
universal interaction. For the dielectron widths and
their ratios are obtained in full agreement with the latest CLEO data. For
and a good agreement with experiment is
reached only if the 4S--3D mixing (with a mixing angle ) and 6S--5D mixing (with ) are taken into
account. The possibility to observe higher "mixed -wave" resonances,
with is discussed. In particular,
, originating from the pure state,
can acquire a rather large dielectron width, eV, so that this
resonance may become manifest in the experiments. On the contrary, the
widths of pure -wave states are very small,
eV.Comment: 13 pages, no figure