Observation of B0 Meson decays to a1(1260) pi
| dc.creator | Aubert, B. | |
| dc.creator | Collaboration, BaBar | |
| dc.date | 2004-08-09 | |
| dc.date.accessioned | 2026-07-07T03:36:25Z | |
| dc.date.available | 2026-07-07T03:36:25Z | |
| dc.description | We present a preliminary measurement of the branching fraction of the B meson decay B0--> a1(1260)+ pi- with a1(1260)+ --> pi+ pi+ pi- . The data were recorded with the BaBar detector at the SLAC B factory PEP-II and correspond to 124 million B Bbar pairs produced in e+ e- annihilation through the Upsilon(4S) resonance. We find the branching fraction Br(B0 --> a1(1260)+ pi-) = (42.6 +- 4.2 +- 4.1) 10^-6. The fitted values of the a1(1260) parameters are M_a1 = 1.19 +- 0.02 GeV/c^2 and Gamma_a1 = 312 +- 55 MeV/c^2 | |
| dc.description | 14 pages,4 postscript figures, submitted to 32nd International Conference on High Energy Physics, ICHEP 04, 16 August -- 22 August, Beijing, China | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0408021 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0408021 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/37751 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Observation of B0 Meson decays to a1(1260) pi | |
| dc.type | text |