Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/130845
Title: | Measurement of branching fractions and rate asymmetries in the rare decays B → K(*)ℓ+ℓ− |
Author: | Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
Keywords: | Física de partícules Experiments Leptons (Física nuclear) Particle physics Experiments Leptons (Nuclear physics) |
Issue Date: | 24-Aug-2012 |
Publisher: | American Physical Society |
Abstract: | In a sample of 471 × 10 6 B ¯¯¯ B events collected with the BABAR detector at the PEP-II e + e − collider we study the rare decays B → K ( * ) ℓ + ℓ − , where ℓ + ℓ − is either e + e − or μ + μ − . We report results on partial branching fractions and isospin asymmetries in seven bins of dilepton mass-squared. We further present C P and lepton-flavor asymmetries for dilepton masses below and above the J / ψ resonance. We find no evidence for C P or lepton-flavor violation. The partial branching fractions and isospin asymmetries are consistent with the Standard Model predictions and with results from other experiments. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.86.032012 |
It is part of: | Physical Review D, 2012, vol. 86, num. 3, p. 032012 |
URI: | http://hdl.handle.net/2445/130845 |
Related resource: | https://doi.org/10.1103/PhysRevD.86.032012 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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