Measurements of Branching Fraction, Polarization, and Direct-CP-Violating Charge Asymmetry in B+ --> K*0 Rho+ Decays
| dc.creator | Aubert, B. | |
| dc.creator | Collaboration, BABAR | |
| dc.date | 2004-08-18 | |
| dc.date | 2004-08-18 | |
| dc.date.accessioned | 2026-07-07T03:36:32Z | |
| dc.date.available | 2026-07-07T03:36:32Z | |
| dc.description | With a sample of 88.8 BBbar pairs produced at PEP-II in e+e- annihilation through the Upsilon(4S) resonance and recorded with the BABAR detector, we search for the B+ --> K*0 Rho+ decay mode. A signal is observed for the first time with a significance of more than 5 sigma. We measure a preliminary branching fraction of BR(B+ --> K*0 Rho+)=[17.0 +-2.9 (stat) +-2.0 (syst) +0.0 -1.9 (non-resonant)] 10(-6). The "non-resonant" error corresponds to the uncertainty from non-resonant backgrounds not modeled in the fit. The measurement of the longitudinal-polarized component to this vector-vector penguin decay is of special interest. We measure fL= 0.79 +-0.08(stat) +-0.04 (syst) +- 0.02 (non-resonant). We measure the direct-CP-violating charge asymmetry in this mode to be A_CP = -0.14 +- 0.17 +- 0.04. | |
| dc.description | 25 pages, 7 figures. contributed to ICHEP 2004 | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0408093 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0408093 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/37794 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurements of Branching Fraction, Polarization, and Direct-CP-Violating Charge Asymmetry in B+ --> K*0 Rho+ Decays | |
| dc.type | text |