Measurements of psi(2S) decays into phi pi0, phi eta, phi eta-prime omega eta, and omega eta-prime

events collected with the BESII detector. Branching fractions of \psi(2S) \rar\phi\eta, \phi\etap, and \omega\etap, and upper limits of \psi(2S) \rar \phi\piz and

\omega\eta

are obtained: B(\psi(2S) \rar\phi\eta) = (3.3\pm 1.1 \pm 0.5) \times 10^{-5}, B(\psi(2S) \rar\phi\etap) = (3.1\pm 1.4 \pm 0.7)\times 10^{-5}, and B(\psi(2S) \rar\omega\etap) = (3.2^{+2.4}_{-2.0} \pm 0.7) \times 10^{-5}; and B(\psi(2S) \rar\phi\piz) < 0.40 \times 10^{-5}, and B(\psi(2S) \rar\omega\eta) < 3.1 \times 10^{-5} at the 90 % C.L.. These results are used to test the pQCD ``12% rule''.

Note:

7 pages, 7 figures, 2 tables

14.40.Gx
12.38.Qk
13.25.Gv
electron positron: colliding beams
electron positron: annihilation
psi(3685): electroproduction
psi(3685): hadronic decay
Phi(1020)
omega(783)
eta(958)

References(0)

Figures(7)

Loading ...