Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/132863
Title: | Study of CP Asymmetry in B0−¯B0 Mixing with Inclusive Dilepton Events |
Author: | Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 25-Feb-2015 |
Publisher: | American Physical Society |
Abstract: | We present a measurement of the asymmetry A C P between same-sign inclusive dilepton samples ℓ + ℓ + and ℓ − ℓ − ( ℓ = e , μ ) from semileptonic B decays in Υ ( 4 S ) → B ¯ B events, using the complete data set recorded by the BABAR experiment near the Υ ( 4 S ) resonance, corresponding to 471 × 1 0 6 B ¯ B pairs. The asymmetry A C P allows comparison between the mixing probabilities P ( ¯ B 0 → B 0 ) and P ( B 0 → ¯ B 0 ) , and therefore probes C P and T violation. The result, A C P = [ − 3.9 ± 3.5 ( stat ) ± 1.9 ( syst ) ] × 1 0 − 3 , is consistent with the standard model expectation. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.114.081801 |
It is part of: | Physical Review Letters, 2015, vol. 114, num. 8, p. 081801 |
URI: | http://hdl.handle.net/2445/132863 |
Related resource: | https://doi.org/10.1103/PhysRevLett.114.081801 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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