Measurements of the branching fractions of B0 → K*0K+K−, B0 → K*0π+K−, B0 → K*0K+π−, and B0 → K*0π+π−
Branching fraction measurements of charmless B 0 → K * 0 h + 1 h − 2 ( h 1 , 2 = K , π ) decays are presented, using a data sample of 383 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric-energy B -meson factory at SLAC. The results are B ( B 0 → K * 0 K +...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2007 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/131436 |
| Acceso en línea: | https://hdl.handle.net/2445/131436 |
| Access Level: | acceso abierto |
| Palabra clave: | Física de partícules Experiments Particle physics |
| Sumario: | Branching fraction measurements of charmless B 0 → K * 0 h + 1 h − 2 ( h 1 , 2 = K , π ) decays are presented, using a data sample of 383 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric-energy B -meson factory at SLAC. The results are B ( B 0 → K * 0 K + K − ) = ( 27.5 ± 1.3 ± 2.2 ) × 10 − 6 , B ( B 0 → K * 0 π + K − ) = ( 4.6 ± 1.1 ± 0.8 ) × 10 − 6 , and B ( B 0 → K * 0 π + π − ) = ( 54.5 ± 2.9 ± 4.3 ) × 10 − 6 . The first errors quoted are statistical and the second are systematic. An upper limit is set for B ( B 0 → K * 0 K + π − ) < 2.2 × 10 − 6 at 90% confidence level. We also present measurements of C P -violating asymmetries for the observed decays. |
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