Measurement of branching fractions and rate asymmetries in the rare decays
Journal Article
·
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
In a sample of 471×106 BB¯ 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 CP and lepton-flavor asymmetries for dilepton masses below and above the J/ψ resonance. We find no evidence for CP or lepton-flavor violation. The partial branching fractions and isospin asymmetries are consistent with the Standard Model predictions and with results from other experiments.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Contributing Organization:
- BABAR Collaboration
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1126458
- Report Number(s):
- SLAC-PUB-14957; PRVDAQ; arXiv:1204.3933
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 86, Issue 3; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
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