On the relations between two-photon and leptonic widths of low-lying S-wave states of charmonium
| dc.creator | Gerasimov, S. B. | |
| dc.creator | Majewski, M. | |
| dc.date | 2005-04-08 | |
| dc.date | 2005-04-09 | |
| dc.date.accessioned | 2026-07-07T03:54:35Z | |
| dc.date.available | 2026-07-07T03:54:35Z | |
| dc.description | The relation between the ratio Gamma_{ee}(psi')/Gamma_{ee}(J/psi) and Gamma_{2gamma}(eta_{c}')/Gamma_{2gamma}(eta_{c}), expressed in terms of the configuration mixing amplitudes induced by the contact spin-spin interaction of quarks in the ground and radial excitation states, is shown to give, after the inclusion of the newly derived relativistic corrections, the radiative eta_{c}'- and η_c-width ratio in fair accord with recent experiments. The dynamical model is proposed to derive the ratio of relative probability of the ground (eta_{c}(2980))- and first radial excitation (eta_{c}'(3640))-state formation in gamma-gamma collisions followed by their decay into the pi\bar{K}K and p\bar{p} channels. | |
| dc.description | 9 pages, Latex, no figures; The report presented at the XVII Baldin Seminar on High Energy Physics Problems, Dubna, Sept.27-Oct.2,2004 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0504067 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0504067 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44299 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | On the relations between two-photon and leptonic widths of low-lying S-wave states of charmonium | |
| dc.type | text |