Published March 1, 2002 | Version v1
Journal article Metadata-only

Study of CP-violating asymmetries in B0→π+π-, K+π- decays

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 a measurement of the time-dependent CP-violating asymmetries in neutral B decays to the π+π-CP eigenstate, and an updated measurement of the charge asymmetry in B0→K+π- decays. In a sample of 33 million Υ(4S)→BB-bar decays collected with the BABAR detector at the SLAC PEP-II asymmetric B factory, we find 65-11+12 π+π- and 217±18 K+π- candidates and measure the asymmetry parameters Sππ=0.03-0.56+0.53±0.11, Cππ=-0.25-0.47+0.45±0.14, and AKπ=-0.07±0.08±0.02, where the first error is statistical and the second is systematic

Additional details

Identifiers

DOI
10.1103/PhysRevD.65.051502;
arXiv
arXiv:hep-ex/0110062v1;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
65
Journal Issue
5
Journal Page Range
p. 051502-051502.8
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
35043358
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANTI-B NEUTRAL MESONS; B NEUTRAL MESONS; CP INVARIANCE; DATA COVARIANCES; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; HADRONIC PARTICLE DECAY; KAONS; KOBAYASHI-MASKAWA MATRIX; MESON FACTORIES; MULTIPARTICLE SPECTROMETERS; PEP STORAGE RINGS; PIONS; UPSILON-11020 MESONS
Descriptors DEC
ACCELERATORS; ANTIMATTER; ANTIMESONS; ANTIPARTICLES; B MESONS; B NEUTRAL MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; BOTTOMONIUM; DATA; DECAY; ELEMENTARY PARTICLES; HADRONS; INFORMATION; INTERACTIONS; INVARIANCE PRINCIPLES; LEPTON-LEPTON INTERACTIONS; MATRICES; MATTER; MEASURING INSTRUMENTS; MESONS; NUMERICAL DATA; PARTICLE DECAY; PARTICLE INTERACTIONS; PSEUDOSCALAR ANTIMESONS; PSEUDOSCALAR MESONS; QUARKONIUM; SPECTROMETERS; STORAGE RINGS; STRANGE MESONS; STRANGE PARTICLES; VECTOR MESONS

Optional Information

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