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Production and Decay of Ξc0 at BABAR

Aubert, B. et al. (2005) Production and Decay of Ξc0 at BABAR. Physical Review Letters, 95 (14). p. 142003. ISSN 0031-9007

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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 cc̅ 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)×B(Ξc0→Ξ-π+) is measured to be (2.11±0.19±0.25)×10-4, and the cross-section product σ(e+e-→Ξc0X)×B(Ξc0→Ξ-π+) from the continuum is measured to be (388±39±41)  fb at a center-of-mass energy of 10.58 GeV.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 31 Mar 2011 09:03
Last Modified: 28 Aug 2021 11:05


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