Measurement of branching fractions and rate asymmetries in the rare decays β→[kappa](*)l+l-
In a sample of 471×106 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 presen...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
24 August 2012
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2012, Jahrgang: 86, Heft: 3 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.86.032012 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.86.032012 Verlag, Volltext: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.032012 
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| Verfasserangaben: | J.P. Lees, A. Adametz, U. Uwer [und weitere] (BABAR Collaboration) |
MARC
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| 246 | 3 | 3 | |a Measurement of branching fractions and rate asymmetries in the rare decays beta → kappa (*) l + l - |
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| 520 | |a In a sample of 471×106 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 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. | ||
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