Published September 1, 2005 | Version v1
Journal article Metadata-only

Measurement of the time-dependent CP-violating asymmetry in B0→KS0π0γ decays

Creators

  • 1. Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
  • 2. IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
  • 3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  • 4. Institute of High Energy Physics, Beijing 100039 (China)
  • 5. University of Bergen, Inst. of Physics, N-5007 Bergen (Norway)

Description

We present a measurement of the time-dependent CP-violating asymmetry in B0→K*0γ decays with K*0→KS0π0 based on 232x106 Υ(4S)→BB decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. In a sample containing 157±16 signal decays, we measure SK*0γ=-0.21±0.40±0.05 and CK*0γ=-0.40±0.23±0.03, where the first error is statistical and the second systematic. We also explore B0→KS0π0γ decays with 1.1<mKS0π0<1.8 GeV/c2 and find 59±13 signal events with SKS0π0γ=0.9±1.0±0.2 and CKS0π0γ=-1.0±0.5±0.2

Additional details

Identifiers

DOI
10.1103/PhysRevD.72.051103;
arXiv
arXiv:hep-ex/0507038v1;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
72
Journal Issue
5
Journal Page Range
p. 051103-051103.8
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37025771
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ASYMMETRY; B NEUTRAL MESONS; CP INVARIANCE; ELECTRON-POSITRON INTERACTIONS; ERRORS; GEV RANGE; HADRONIC PARTICLE DECAY; K*-892 MESONS; KAONS NEUTRAL SHORT-LIVED; MULTIPARTICLE SPECTROMETERS; PARTICLE IDENTIFICATION; PEP STORAGE RINGS; PHOTONS; PIONS NEUTRAL; RESONANCE PARTICLES; TIME DEPENDENCE; UPSILON-10580 MESONS
Descriptors DEC
B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; BOTTOMONIUM; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; KAONS; KAONS NEUTRAL; LEPTON-LEPTON INTERACTIONS; MASSLESS PARTICLES; MEASURING INSTRUMENTS; MESONS; PARTICLE DECAY; PARTICLE INTERACTIONS; PIONS; PSEUDOSCALAR MESONS; QUARKONIUM; SPECTROMETERS; STORAGE RINGS; STRANGE MESONS; STRANGE PARTICLES; VECTOR MESONS

Optional Information

Notes
(c) 2005 The American Physical Society
Collaborations
BABAR Collaboration