%0 Journal Article %1 DomenechGarret2008Spectroscopy %A Domenech-Garret, Juan-Luis %A Sanchis-Lozano, Miguel-Angel %D 2008 %K decay, spectroscopy %T Spectroscopy, leptonic decays and the nature of heavy quarkonia %U http://arxiv.org/abs/0805.2916 %X We examine the electronic width ratios of Upsilon resonances below the BBbar threshold by means of an effective (Cornell-type) QCD potential incorporating 1/m\_b corrections obtained from a prior fit to the bottomonium spectrum. From our analysis we conclude that the Upsilon(2S) and Upsilon(3S) states should belong to the strong-coupling (nonperturbative) regime while the Upsilon(1S) state should belong to the weak-coupling (perturbative) regime, in agreement with a previous study based on radiative decays.

@article{DomenechGarret2008Spectroscopy, abstract = {{We examine the electronic width ratios of Upsilon resonances below the BBbar threshold by means of an effective (Cornell-type) QCD potential incorporating 1/m\_b corrections obtained from a prior fit to the bottomonium spectrum. From our analysis we conclude that the Upsilon(2S) and Upsilon(3S) states should belong to the strong-coupling (nonperturbative) regime while the Upsilon(1S) state should belong to the weak-coupling (perturbative) regime, in agreement with a previous study based on radiative decays.}}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Domenech-Garret, Juan-Luis and Sanchis-Lozano, Miguel-Angel}, biburl = {https://www.bibsonomy.org/bibtex/298cceb27eefc2bc5acd6560158ffaa87/cmcneile}, citeulike-article-id = {5044053}, citeulike-linkout-0 = {http://arxiv.org/abs/0805.2916}, citeulike-linkout-1 = {http://arxiv.org/pdf/0805.2916}, day = 14, eprint = {0805.2916}, interhash = {e4e7fdec834d6e26e8819b47f08ab01e}, intrahash = {98cceb27eefc2bc5acd6560158ffaa87}, keywords = {decay, spectroscopy}, month = sep, posted-at = {2009-07-03 10:09:09}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {{Spectroscopy, leptonic decays and the nature of heavy quarkonia}}, url = {http://arxiv.org/abs/0805.2916}, year = 2008 }