Search for $η_{c}^{\prime}$ decays into vector meson pairs

Details Search for $η_{c}^{\prime}$ decays into vector meson pairs Search for $η_{c}^{\prime}$ decays into vector meson pairs

2011-10-05

arxiv.org/abs/1110.0949v2

Phys. Rev. D 84, 091102 (2011)

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 9 figures, 2 tables

Scientific paper

10.1103/PhysRevD.84.091102

The processes $\etacpto \rho^{0}\rho^{0}$, $K^{*0}\bar{K}^{*0}$, and $\phi\phi$ are searched for using a sample of $1.06 \times 10^8$ $\psip$ events collected with the BESIII detector at the BEPCII collider. No signals are observed in any of the three final states. The upper limits on the decay branching fractions are determined to be $\mathcal{B}(\etacpto\rho^{0}\rho^{0})<3.1\times10^{-3}$, $\mathcal{B}(\etacpto K^{*0}\bar{K}^{*0})<5.4 \times10^{-3}$, and $\mathcal{B}(\etacpto\phi\phi)<2.0\times10^{-3}$ at the 90% confidence level. The upper limits are lower than the existing theoretical predictions.

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