Search for the Y(4140) via e+eγϕJ/ψe^+e^- → γϕJ/ψ at s\sqrt{s}=4.23 , 4.26 and 4.36 GeV

Collaboration
Dec 4, 2014

Citations per year

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Abstract: (APS)

Using data samples collected at center-of-mass energies s=4.23, 4.26, and 4.36 GeV with the BESIII detector operating at the BEPCII storage ring, we search for the production of the charmoniumlike state Y(4140) through a radiative transition followed by its decay to ϕJ/ψ. No significant signal is observed and upper limits on σ[e+e-γY(4140)]·B(Y(4140)ϕJ/ψ) at the 90% confidence level are estimated as 0.35, 0.28, and 0.33 pb at s=4.23, 4.26, and 4.36 GeV, respectively.

  • 14.40.Rt
  • 13.66.Bc
  • 14.40.Pq
  • 13.20.Gd
  • Y(4140): search for
  • Beijing Stor
  • BES
  • J/psi(3100): leptonic decay
  • Phi(1020): hadronic decay
  • electron positron: annihilation