Study of B^+/- --> J/psi pi^+/- and B^+/- --> J/psi K^+/- Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation
| dc.creator | The BABAR Collaboration | |
| dc.creator | Aubert, B. | |
| dc.date | 2004-01-23 | |
| dc.date.accessioned | 2026-07-07T11:57:48Z | |
| dc.date.available | 2026-07-07T11:57:48Z | |
| dc.description | We study B^+/- --> J/psi pi^+/- and B^+/- --> J/psi K^+/- decays in a sample of about 89 million BB~ pairs collected with the BABAR detector at the PEP-II asymmetric B-factory at SLAC. We observe a signal of 244 +/- 20 B^+/- --> J/psi pi^+/- events and determine the ratio BF(B^+/- --> J/psi pi^+/-)/BF(B^+/- --> J/psi K^+/-) to be [5.37 +/- 0.45 (stat.) +/- 0.11 (syst)]%. The charge asymmetries for the B^+/- --> J/psi pi^+/- and B^+/- --> J/psi K^+/- decays are determined to be A_pi = 0.123 +/- 0.085 (stat.) +/- 0.004 (syst.) and A_K = 0.030 +/- 0.015 (stat.) +/- 0.006 (syst.), respectively. | |
| dc.description | v1: submitted to Physical Review Letters, 7 pages, 3 postscript figures, 1 table | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0401035 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0401035 | |
| dc.identifier | Phys.Rev.Lett.92:241802,2004 | |
| dc.identifier | doi:10.1103/PhysRevLett.92.241802 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206008 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of B^+/- --> J/psi pi^+/- and B^+/- --> J/psi K^+/- Decays: Measurement of the Ratio of Branching Fractions and Search for Direct CP Violation | |
| dc.type | text |