Prospects on Determining Electric Dipole Moments of Σand Ξ Hyperons at BESIII

The electric dipole moment ofΣ(or Ξ) hyperon, d_Σ(or dΞ), can be detected by analyzing the angular distribution in the decay process of J/φ→. The dependence of dΣ(or dΞ) on the free parameters describing the angular distribution is studied in detail with a Monte Carlo simulation based on 10⁹ J/ψ events expected in one year data taking at BESIⅢ. The result shows that an expected upper limit with 10^-16~10^-18 e cm on d^_Σ (or d_Ξ) can be achieved depending on the true values of free parameters.