Measurement of the Radiative $J/\psi$ Decays in $K \bar{K}$ States

The decays Jψ→γK+K− and γKS0KS0 have been studied by use of 8.6×106 Jψ's produced in the DM2 detector. Clean and well-separated signals of f2′(1525) and f2(1720) are observed in both channels and the measured product branching ratios are given. In neither channel is the ξ(2230) seen; upper limits are given. Last, an as-yet-unexplained production of events is observed in the KS0KS0 mass spectrum between 2.0 and 2.5 GeV/c2.

ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
J/PSI(3100): ELECTROPRODUCTION
ELECTROPRODUCTION: J/PSI(3100)
J/PSI(3100): RADIATIVE DECAY
RADIATIVE DECAY: J/PSI(3100)
MASS SPECTRUM: (K ANTI-K)
(K ANTI-K): MASS SPECTRUM

References(6)

Figures(0)

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Measurement of the Radiative J/ψJ/\psiJ/ψ Decays in KKˉK \bar{K}KKˉ States

Citations per year

The Decay of the Upsilon Into Photons and Gluons

Observation of a Narrow K anti-K State in J/psi Radiative Decays

Dm2: A Magnetic Detector for the Orsay Storage Ring DCI

Review of Particle Properties. Particle Data Group

Limits on the Neutrino Lifetime

Measurement of the Radiative $J/\psi$ Decays in $K \bar{K}$ States