Published September 30, 2005 | Version v1
Journal article

Production and Decay of Ξc0 at BABAR

  • 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

Using 116.1 fb-1 of data collected by the BABAR detector, we present an analysis of Ξc0 production in B decays and from the cc continuum, with the Ξc0 decaying into Ω-K+ and Ξ-π+ final states. We measure the ratio of branching fractions B(Ξc0→Ω-K+)/B(Ξc0→Ξ-π+) to be 0.294±0.018±0.016, where the first uncertainty is statistical and the second is systematic. The Ξc0 momentum spectrum is measured on and 40 MeV below the Υ(4S) resonance. From these spectra the branching fraction product B(B→Ξc0X)xB(Ξc0→Ξ-π+) is measured to be (2.11±0.19±0.25)x10-4, and the cross-section product σ(e+e-→Ξc0X)xB(Ξc0→Ξ-π+) from the continuum is measured to be (388±39±41) fb at a center-of-mass energy of 10.58 GeV

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
95
Journal Issue
14
Journal Page Range
p. 142003-142003.7
ISSN
0031-9007
CODEN
PRLTAO

Optional Information

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