Observation of B+ -> rho+ rho0
| dc.creator | Zhang, J. | |
| dc.creator | Nakao, M. | |
| dc.date | 2003-06-03 | |
| dc.date.accessioned | 2026-07-07T12:01:58Z | |
| dc.date.available | 2026-07-07T12:01:58Z | |
| dc.description | We report the first observation of the charmless vector-vector decay process B+ ->rho+ rho0. The measurement uses a 78 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric e+e- collider operating at the Upsilon(4S) resonance. We obtain a branching fraction of Br(B+ ->rho+ rho0)=(31.7+-7.1(stat.)+3.8-6.7(sys.))*10^{-6}. An analysis of the rho helicity-angle distributions gives a longitudinal polarization of Gamma_{L}/Gamma=(94.8+-10.6(stat.)+-2.1(sys.))%. | |
| dc.description | 5 pages, 3 figures, submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0306007 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0306007 | |
| dc.identifier | Phys.Rev.Lett.91:221801,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.91.221801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207281 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Observation of B+ -> rho+ rho0 | |
| dc.type | text |