Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays $B \to K^{(*)} l^+ l^-$ - INSPIRE

DataBETA

Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays $B \to K^{(*)} l^+ l^-$

BaBar

Collaboration

•

J.P. Lees
(
- Annecy, LAPP
)

Apr, 2012

16 pages

Published in:

Phys.Rev.D 86 (2012) 032012

e-Print:

1204.3933 [hep-ex]

DOI:

10.1103/PhysRevD.86.032012

PDG:

\mathit A_{CP}({{\mathit B}^{+}}

\rightarrow

{{\mathit K}^{+}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}

Report number:

SLAC-PUB-14957,
BABAR-PUB-12-002

Experiments:

SLAC-PEP2-BABAR

View in:

reference search341 citations

Citations per year

Abstract: (arXiv)

In a sample of 471 million 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 mu+mu-. We report results on partial branching fractions and isospin asymmetries in seven bins of di-lepton mass-squared. We further present CP and lepton-flavor asymmetries for di-lepton masses below and above the J/psi 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.

Note:

16 pages, 14 figures, accepted by Phys. Rev. D

13.20.He
B+: rare decay
B: branching ratio: measured
asymmetry: CP
isospin: asymmetry
lepton: flavor: asymmetry
electron positron: annihilation
B: pair production
B0: rare decay
neutral current: flavor changing

References(38)

Figures(17)

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