Measurements of branching fractions in B -> phi K and B -> phi pi and search for direct CP violation in B+/- -> phi K+/-
| dc.creator | The BABAR Collaboration | |
| dc.creator | Aubert, B. | |
| dc.date | 2003-09-06 | |
| dc.date | 2004-02-06 | |
| dc.date.accessioned | 2026-07-07T12:02:05Z | |
| dc.date.available | 2026-07-07T12:02:05Z | |
| dc.description | We present measurements of branching fractions in the b -> s s-bar s penguin-dominated decays B+ --> phi K+ and B0 --> phi K0 in a sample of approximately 89 million BBbar pairs collected by the BaBar detector at the PEP-II asymmetric-energy B-meson factory at SLAC. We determine B(B+ --> phi K+) = (10.0 +0.9 -0.8 +/- 0.5) x 10^{-6} and B(B0 --> phi K0) = (8.4 +1.5 -1.3 +/- 0.5) x 10^{-6}. Additionally, we measure the CP-violating charge asymmetry ACP (B+/- --> phi K+/-) = 0.04 +/- 0.09 +/- 0.01, with a 90% confidence interval of [-0.10, 0.18], and set an upper limit B(B+ --> phi pi+) < 0.41 x 10^{-6} (at the 90% confidence level). | |
| dc.description | 6 pages, 3 postscript figures, submitted to Phys. Rev. D (Rapid Communications) | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0309025 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0309025 | |
| dc.identifier | Phys.Rev.D69:011102,2004 | |
| dc.identifier | doi:10.1103/PhysRevD.69.011102 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207319 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurements of branching fractions in B -> phi K and B -> phi pi and search for direct CP violation in B+/- -> phi K+/- | |
| dc.type | text |