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
|
Other authors:
|
Universitat de Barcelona |
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. |
Subject(s):
|
-Física de partícules -Experiments -Leptons (Física nuclear) -Particle physics -Experiments -Leptons (Nuclear physics) |
Rights:
|
(c) American Physical Society, 2012
|
Document type:
|
Article Article - Published version |
Published by:
|
American Physical Society
|
Share:
|
|