Bob I. Eisenstein

STUDY OF THE RADIATIVE DECAY J / PSI ---> GAMMA ETA PI+ PI-

J. Becker, D. Coward, David E. Dorfan, W. Stockhausen et autres

The Mark III collaboration has performed a high statistics study of the reaction J/q3 --) rq7r+7r-, with two different final states of the q, r~ --) 77 and rj --) 7r07r+7r-.Both modes have a broad structure from 1.2 to 1.9 GeV/c2 and …

Improved Measurement of the Branching Fraction and Energy Spectrum of eta-prime from Upsilon(1S) Decays

O. Aquines Gutierrez, D. L. Hartill, I. Dankó, F. Liu et autres

Measurement of B(Upsilon(5S) ---> B(*)(s) anti-B(*)(s)) Using phi Mesons

G. S. Huang, D. L. Hartill, I. Danko, F. Liu et autres

Branching Fractions for ψ(2S)-to-J/ψ Transitions

N. Adam, Karl Berkelman, D. G. Cassel, V. Credé et autres

We describe new measurements of the inclusive and exclusive branching fractions for $\ensuremath{\psi}(2S)$ transitions to $J/\ensuremath{\psi}$ using ${e}^{+}{e}^{\ensuremath{-}}$ collision data collected with the CLEO detector operating at CESR. All branching fractions and ratios of branching fractions reported here represent either the most …

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Search for e+e-→Λb0Λ¯b0 near threshold

D. Z. Besson, T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao et autres

Using the CLEO-III detector at CESR we study ${e}^{+}{e}^{\ensuremath{-}}$ collisions in the center-of-mass energy close to, or above, ${\ensuremath{\Lambda}}_{b}^{0}{\overline{\ensuremath{\Lambda}}}_{b}^{0}$ production threshold. We search for evidence of ${\ensuremath{\Lambda}}_{b}^{0}{\overline{\ensuremath{\Lambda}}}_{b}^{0}$ resonance production and set upper limits based on inclusive hadron production as a barometer of …

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Measurement of the muonic branching fraction of the narrow upsilon resonances at CLEO

G. S. Adams, G. S. Huang, D. L. Hartill, K. M. Ecklund et autres

Measurement of the decay rate of Ξc0→pK-K-π+ relative to Ξc0→Ξ-π+

I. Danko, D. Cronin-Hennessy, C. Park, Woosang Park et autres

Using the CLEO III detector at CESR, we have measured the branching ratio of the decay ${\ensuremath{\Xi}}_{c}^{0}\ensuremath{\rightarrow}{\mathrm{pK}}^{\ensuremath{-}}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ relative to ${\ensuremath{\Xi}}_{c}^{0}\ensuremath{\rightarrow}{\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}.$ We find $\mathcal{B}({\ensuremath{\Xi}}_{c}^{0}\ensuremath{\rightarrow}{\mathrm{pK}}^{\ensuremath{-}}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+})/\mathcal{B}({\ensuremath{\Xi}}_{c}^{0}\ensuremath{\rightarrow}{\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+})=0.35\ifmmode\pm\else\textpm\fi{}0.06(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.03(\mathrm{syst}).$ In the resonant substructure of this mode, we find evidence for ${\ensuremath{\Xi}}_{c}^{0}$ decays to $p\overline{{K}^{*}}{(892)}^{0}{K}^{\ensuremath{-}},$ and measure $\mathcal{B}({\ensuremath{\Xi}}_{c}^{0}\ensuremath{\rightarrow}p\overline{{K}^{*}}{(892)}^{0}{K}^{\ensuremath{-}})\ifmmode\times\else\texttimes\fi{}\mathcal{B}(\overline{{K}^{*}}{(892)}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+})/\mathcal{B}({\ensuremath{\Xi}}_{c}^{0}\ensuremath{\rightarrow}{\ensuremath{\Xi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+})=0.14\ifmmode\pm\else\textpm\fi{}0.03(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.01(\mathrm{syst})$ and …

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Cabibbo suppressed decays of D+ ---> pi+ pi0, K+ anti-K0, K+ pi0

K. Arms, D. L. Hartill, C. J. Stepaniak, F. Liu et autres

Study of two photon transistions in CLEO-III Upsilon (3S) data

D. Cinabro, D. L. Hartill, C. J. Stepaniak, H. Kagan et autres

We have studied two-photon transitions from Upsilon(3S) decays recorded by the CLEO-III detector in exclusive events with two photons and either two electrons or two muons. We obtain precision measurements of the chi_b(2P_J) masses for J=2 and J=1. The transition rates for …

B ---> D* pi+ pi- pi- pi0, D(*) omega pi- and the observation of a wide 1- omega pi- enhancement at 1418-MeV

M. Artuso, D. L. Hartill, John J. O'Neill III, I. Danko et autres

Determination of the B ---> D* l nu decay width and |V(cb)|

J. Alexander, D. L. Hartill, K. W. McLean, J. J. O’Neill et autres

We determine the CKM matrix element |Vcb| using a sample of 3.33 million BBbar events in the CLEO detector at CESR. We determine the yield of reconstructed B --> D*+ l nu decays as a function of w = v_B . v_D*, …

Observation of the Omega 0(c) charmed baryon at CLEO

S. A. S. Ahmed, D. L. Hartill, J. J. O’Neill, A. Ershov et autres

The CLEO detector at the CESR collider has used 13.7 fb^{-1} to search for the production of Omega_c (css-ground state) in e^{+}e^{-} collisions at sqrt{s} = 10.6 GeV The modes used to study the Omega_c are Omega- pi+, Omega- pi+ pi0, Xi- …