Recent results from SND experiment at VEPP-2000 collider

Recent Results from the Vepp-2m Collider at Novosibirsk

The ee collider VEPP-2M at Novosibirsk is the only machine covering the energy range 360{1400 MeV. The peak luminosity is 5: 10cm s 1 for the resonance region. Two modern detectors| the general-purpose magnetic detector CMD-2 and Spherical Neutral Detector (SND)|are taking data at the VEPP-2M collider. The integrated luminosity about 10 pb 1 has been collected by both detectors. Latest results ...

Γγ in the Snd Experiment at Vepp-2m

The η → πγγ decay was investigated by the SND detector at VEPP-2M ee collider in the reaction ee → φ → ηγ. Here we present the results and some details of this study. We report an upper limit (90% c.l.) Br(η → πγγ) < 8.4×10−4 as our final result. Our upper limit does not contradict the earlier measurement by GAMS spectrometer. To facilitate future studies a rather detailed review of the problem...

Recent Results from the KEDR detector at the VEPP-4M ee-collider

We report results of experiments performed with the KEDR detector at the VEPP-4M e + e − collider. They include final results for ψ(2S) and preliminary results for ψ(3770) parameters, combined analysis of all 2002-2006 scans on J/ψ and ψ(2S) masses, and a search for narrow resonances in e + e − annihilation at center-of-mass energies between 1.85 and 3.1 GeV.

Recent Results from the Cmd-2 Detector at the Vepp-2m Collider

The general-purpose detector CMD-2 is taking data at the Novosibirsk VEPP-2M ee collider in the energy range 360{1400MeV, with luminosity of 5:0 10 cm 2 s 1 for the resonance region. Data from 1500 nb 1 of integrated luminosity around 1.02 GeV and 500 nb 1 in the 600{1000 MeV range have been collected and preliminary analyses performed. We present progress in studies of the meson and KSKL syste...

γγ with the SND detector at VEPP - 2