e^+ e^- Annihilation into J/psi + J/psi
| dc.creator | Bodwin, Geoffrey T. | |
| dc.creator | Braaten, Eric | |
| dc.creator | Lee, Jungil | |
| dc.date | 2002-12-13 | |
| dc.date | 2005-10-25 | |
| dc.date.accessioned | 2026-07-07T10:33:13Z | |
| dc.date.available | 2026-07-07T10:33:13Z | |
| dc.description | Recent measurements by the Belle Collaboration of the exclusive production of two charmonia in e^+ e^- annihilation differ substantially from theoretical predictions. We suggest that a significant part of the discrepancy can be explained by the process e^+ e^- -> J/psi + J/psi. Because the J/psi + J/psi production process can proceed through fragmentation of two virtual photons into two cc-bar pairs, its cross section may be larger than that for J/psi +eta_c by about a factor 1.8, in spite of a suppression factor alpha^2/alpha_s^2 that is associated with the QED and QCD coupling constants. | |
| dc.description | 5 pages, 2 figures, 1 table, revised to correct errors in original version, Erratum to Phys. Rev. Lett. article included as a separate file | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0212181 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0212181 | |
| dc.identifier | Phys.Rev.Lett.90:162001,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.90.162001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179031 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | e^+ e^- Annihilation into J/psi + J/psi | |
| dc.type | text |