CUSB-II Collaboration infers hadronic widths of Xb states, suggesting need for precision measurements.
The CUSB-II Collaboration has inferred the hadronic widths of the Xb(2P_J) states from the measured branching fractions and the potential model rates of their E1 decays. These widths agree qualitatively with perturbative QCD calculations. The disagreement in absolute values of the widths between the experimental and QCD predictions confirm the same situation as in the charmonium system, which means more precision measurements are sorely needed.
No takes yet. Share an insight, caveat, or question.
Lee et al. (1993) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: