activity
20072010
collaborators

8 papers

hep-ex2010

Update of the measurement of the cross section for e^+e^- -> psi(3770) -> hadrons

D. Besson

We have updated our measurement of the cross section for e^+e^- -> psi(3770) -> hadrons, our publication "Measurement of sigma(e^+e^- -> psi(3770) -> hadrons) at E_{c.m.} = 3773 Me…

hep-ex2008

Observation of J/psi --> 3 gamma

CLEO Collaboration, G. S. Adams

We report the first observation of the decay J/psi --> 3 gamma. The signal has a statistical significance of 6 sigma and corresponds to a branching fraction of B(J/psi --> 3 gamma)…

hep-ex2008

Measurement of the eta'-meson mass using J/psi--> gamma eta'

CLEO Collaboration, J. Libby

We measure the mass of the eta' meson using psi(2S)--> pi+ pi- J/psi, J/psi--> gamma eta' events acquired with the CLEO-c detector operating at the CESR e+e- collider. Using three…

hep-ex2008

J/psi and psi(2S) Radiative Transitions to eta_c

CLEO Collaboration, R. E. Mitchell

Using 24.5 million psi(2S) decays collected with the CLEO-c detector at CESR we present the most precise measurements of magnetic dipole transitions in the charmonium system. We me…

hep-ex2008

First Observation of the Decay D_s^+ to proton anti-neutron

CLEO Collaboration, S. B. Athar

Using e^+e^- -> D_s^*+ D_s^- data collected near the peak D_s production energy, E_cm=4170 MeV, with the CLEO-c detector, we present the first observation of the decay D_s^+ -> pro…

hep-ex2008

Absolute Measurement of Hadronic Branching Fractions of the D_s^+ Meson

CLEO Collaboration, J. Alexander

The branching fractions of D_s meson decays serve to normalize many measurements of processes involving charm quarks. Using 298 /pb of e+ e- collisions recorded at a center of mass…