Solving the rho - pi puzzle by higher charmonium Fock states
| dc.creator | Chen, Yu-Qi | |
| dc.date | 1998-08-06 | |
| dc.date.accessioned | 2026-07-07T04:04:28Z | |
| dc.date.available | 2026-07-07T04:04:28Z | |
| dc.description | A new explanation for the longstanding puzzle of the tiny branching fraction of psi' --> rho pi relative to that for J/psi --> rho pi was proposed. In the case of J/psi, we argue that this decay is dominated by a higher Fock state in which the c cbar pair is in a color-octet ^3S_1 state and annihilates via the process c cbar --> q qbar. In the case of the psi', we argue that the probability for the c cbar c pair in this higher Fock state to be close enough to annihilate is suppressed by a dynamical effect related to the small energy gap between the mass of the psi' and the D Dbar threshold. | |
| dc.description | 11 pages, Talk given at 3rd Workshop on Continuous Advances in QCD (QCD 98), Minneapolis, MN, 16-19 Apr 1998 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9808237 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9808237 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/48110 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | Solving the rho - pi puzzle by higher charmonium Fock states | |
| dc.type | text |