1,721,911 research outputs found
Measurement of branching fractions for exclusive B decays to charmonium final states
No full textWe report branching fraction measurements for exclusive decays of charged and neutral B mesons into two-body final states containing a charmonium meson. We use a sample of 22.72+/-0.36 million BBbar events collected between October 1999 and October 2000 with the BABAR detector at the PEP-II storage rings at the Stanford Linear Accelerator Center. The charmonium mesons considered here are J/ψ, ψ(2S), and χc1, and the light meson in the decay is either a K, K*, or π0
e+ e- ---> K+ K- pi+ pi-, K+ K- pi0 pi0 and K+ K- K+ K- cross-sections measured with initial-state radiation
No full textMeasurement of cos 2 beta in B0 ---> D(*) h0 Decays with a Time-Dependent Dalitz Plot Analysis of D ---> K0(S) pi+ pi-
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Study of anti-B ---> Xi(c) anti-Lambda-(c) and anti-B ---> anti-Lambda+(c) anti-Lambda-(c) anti-K decays at BABAR
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Measurement of the relative branching fractions of anti-B ---> D/D*/D** l- anti-nu(l)decays in events with a fully reconstructed B meson
No full textMeasurement of J/psi production in continuum e+e- annihilations near sqrt(s) = 10.6 GeV
No full textThe production of mesons in continuum annihilations has been studied with the BABAR detector at energies near the resonance, approximately 10.6 GeV. The mesons are distinguished from production in B decays through their center-of-mass momentum and energy. We measure the cross section to be pb; for momentum above 2 GeV/c, it is pb. We set a 90% confidence level upper limit on the branching fraction for direct \to J/\psi X4.7\times 10^{-4}$
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