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http://hdl.handle.net/2445/140339
Title: | Measurement of the CP Asymmetry and Branching Fraction of B0→ρ0K0 |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 2-Feb-2007 |
Publisher: | American Physical Society |
Abstract: | We present a measurement of the branching fraction and time-dependent C P asymmetry of B 0 → ρ 0 K 0 . The results are obtained from a data sample of 227 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at Stanford Linear Accelerator Center. From a time-dependent maximum likelihood fit yielding 111 ± 19 signal events, we find B ( B 0 → ρ 0 K 0 ) = ( 4.9 ± 0.8 ± 0.9 ) × 10 − 6 , where the first error is statistical and the second systematic. We report the measurement of the C P parameters S ρ 0 K 0 S = 0.20 ± 0.52 ± 0.24 and C ρ 0 K 0 S = 0.64 ± 0.41 ± 0.20 . |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.98.051803 |
It is part of: | Physical Review Letters, 2007, vol. 98, num. 5, p. 051803 |
URI: | http://hdl.handle.net/2445/140339 |
Related resource: | https://doi.org/10.1103/PhysRevLett.98.051803 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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