Published June 17, 2002 | Version v1
Journal article Metadata-only

Search for the rare decays B→Kl+l- and B→K*l+l-

Creators

  • 1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
  • 2. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  • 3. Institute of High Energy Physics, Beijing 100039 (China)
  • 4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
  • 5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

Description

We present results from a search for the flavor-changing neutral current decays B→Kl+l- and B→K*l+l- , where l+l- is either an e+e- or μ+μ- pair. The data sample comprises 22.7x106 Υ (4S)→BB decays collected with the BABAR detector at the PEP-II B Factory. We obtain the 90% C.L. upper limits B(B→Kl+l-) <0.51x10-6 and B(B→K*l+l-)<3.1x10-6 , close to standard model predictions for these branching fractions. We have also obtained limits on the lepton-family-violating decays B→Ke±μ± and B→K*e±μ±

Additional details

Identifiers

DOI
10.1103/PhysRevLett.88.241801;
arXiv
arXiv:hep-ex/0201008v1;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
88
Journal Issue
24
Journal Page Range
p. 241801-241801.7
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35019305
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
B MESONS; ELECTRON PAIRS; FLAVOR MODEL; KAONS; MUONS MINUS; MUONS PLUS; NEUTRAL CURRENTS; PAIR PRODUCTION; SEMILEPTONIC DECAY; STANDARD MODEL; SYMMETRY
Descriptors DEC
ALGEBRAIC CURRENTS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; COMPOSITE MODELS; CURRENTS; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; INTERACTIONS; LEPTONS; MATHEMATICAL MODELS; MATTER; MESONS; MUONS; PARTICLE DECAY; PARTICLE MODELS; PARTICLE PRODUCTION; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARK MODEL; STRANGE MESONS; STRANGE PARTICLES; UNIFIED GAUGE MODELS; WEAK PARTICLE DECAY

Optional Information

Notes
(c) 2002 The American Physical Society
Collaborations
BABAR Collaboration