Extracting Br(omega->pi^+ pi^-) from the Time-like Pion Form-factor
| dc.creator | Gardner, S. | |
| dc.creator | O'Connell, H. B. | |
| dc.date | 1998-09-01 | |
| dc.date | 1999-03-04 | |
| dc.date.accessioned | 2026-07-07T11:09:50Z | |
| dc.date.available | 2026-07-07T11:09:50Z | |
| dc.description | We extract the G-parity-violating branching ratio Br(omega->pi^+ pi^-) from the effective rho-omega mixing matrix element Pi_{rho omega}(s), determined from e^+e^- -> pi^+ pi^- data. The omega->pi^+ pi^- partial width can be determined either from the time-like pion form factor or through the constraint that the mixed physical propagator D_{rho omega}^{mu nu}(s) possesses no poles. The two procedures are inequivalent in practice, and we show why the first is preferred, to find finally Br(omega->pi^+ pi^-) = 1.9 +/- 0.3%. | |
| dc.description | 12 pages (published version) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9809224 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9809224 | |
| dc.identifier | Phys.Rev.D59:076002,1999 | |
| dc.identifier | doi:10.1103/PhysRevD.59.076002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/190605 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | Extracting Br(omega->pi^+ pi^-) from the Time-like Pion Form-factor | |
| dc.type | text |