Published October 19, 2007 | Version v1
Journal article Metadata-only

Measurements of CP-Violating Asymmetries in the Decay B0→K+K-K0

Creators

  • 1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
  • 2. Facultat de Fisica, Departament ECM, Universitat de Barcelona, E-08028 Barcelona (Spain)
  • 3. Dipartimento di Fisica and INFN, Universita di Bari, I-70126 Bari (Italy)
  • 4. Institute of Physics, University of Bergen, N-5007 Bergen (Norway)
  • 5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

Description

We analyze the decay B0→K+K-K0 using 383x106 BB events collected by the BABAR detector at SLAC to extract CP violation parameter values over the Dalitz plot. Combining all K+K-K0 events, we find ACP=-0.015±0.077±0.053 and βeff=0.352±0.076±0.026 rad, corresponding to a CP violation significance of 4.8σ. A second solution near π/2-βeff is disfavored with a significance of 4.5σ. We also report ACP and βeff separately for decays to φ(1020)K0, f0(980)K0, and K+K-K0 with mK+K->1.1 GeV/c2

Additional details

Identifiers

DOI
10.1103/PhysRevLett.99.161802;
arXiv
arXiv:0706.3885v2;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
99
Journal Issue
16
Journal Page Range
p. 161802-161802.7
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
39045852
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ASYMMETRY; B NEUTRAL MESONS; CP INVARIANCE; DALITZ PLOT; F0-980 MESONS; KAONS MINUS; KAONS NEUTRAL; KAONS PLUS; PAIR PRODUCTION; PARTICLE DECAY; PHI-1020 MESONS; STANFORD LINEAR ACCELERATOR CENTER
Descriptors DEC
B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; DIAGRAMS; ELEMENTARY PARTICLES; HADRONS; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; KAONS; MESONS; NATIONAL ORGANIZATIONS; PARTICLE PRODUCTION; PHI MESONS; PSEUDOSCALAR MESONS; SCALAR MESONS; SCATTERPLOTS; STRANGE MESONS; STRANGE PARTICLES; US DOE; US ERDA; US ORGANIZATIONS; VECTOR MESONS

Optional Information

Notes
(c) 2007 The American Physical Society
Collaborations
BABAR Collaboration