Search for rare Phi decays in pi+ pi_ gamma final state
| dc.creator | 2 Collaboration | |
| dc.date | 1997-11-14 | |
| dc.date.accessioned | 2026-07-07T10:32:17Z | |
| dc.date.available | 2026-07-07T10:32:17Z | |
| dc.description | A search for phi radiative decays has been performed using a data sample of about 2.0 million phi decays collected by the CMD-2 detector at VEPP-2M collider in Novosibirsk. From the selected e+ e- -> pi+ pi- gamma events the following results were obtained: B(phi -> f0(980) gamma) < 1x10-4 for destructive and B(phi -> f0(980) gamma) < 7x10-4 for constructive interference with the Bremsstrahlung process respectively, B(phi -> gamma -> pi+ pi- gamma) < 3x10-5 for E of gamma > 20 MeV, B(phi -> rho gamma) < 7x10-4. From the selected e+ e- -> mu+ mu- gamma events B(phi -> mu+ mu- gamma) = (2.3+-1.0)x10-5 has been obtained for E of gamma> 20 MeV. The upper limit on the P,CP-violating decay eta -> pi+ pi- has also been placed: B(eta -> pi+ pi-) < 9x10-4 . All upper limits are at 90 % C.L. | |
| dc.description | 18 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9711007 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9711007 | |
| dc.identifier | Phys.Lett.B415:452-462,1997 | |
| dc.identifier | doi:10.1016/S0370-2693(97)01365-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/178704 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for rare Phi decays in pi+ pi_ gamma final state | |
| dc.type | text |