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Folding Procedure for \(\Omega \)-\(\alpha \) Potential

  • I. Filikhin,
  • R. Ya. Kezerashvili,
  • B. Vlahovic

摘要

Using the folding procedure, we investigate the bound state of the \(\Omega \) Ω + \(\alpha \) α system. Previous theoretical analyses have indicated the existence of a deeply bound ground state, which is attributed to the strong \(\Omega \) Ω -nucleon interaction. By employing well-established parameterizations of nucleon density within the alpha particle, we performed numerical calculations for the folding \(\Omega \) Ω - \(\alpha \) α potential. Our results show that the \(V_{\Omega \alpha }(r)\) V Ω α ( r ) potential can be accurately fitted using a Woods-Saxon function, with a phenomenological parameter \(R = 1.1A^{1/3} \approx 1.74\) R = 1.1 A 1 / 3 1.74 fm ( \(A=4\) A = 4 ) in the asymptotic region where \(2< r < 3\) 2 < r < 3 fm. We provide a thorough description of the corresponding numerical procedure. Our evaluation of the binding energy of the \(\Omega \) Ω + \(\alpha \) α system within the cluster model is consistent with both previous and recent reported findings. To further validate the folding procedure, we also calculated the \(\Xi \) Ξ - \(\alpha \) α folding potential based on a simulation of the ESC08c Y-N Nijmegen model. A comprehensive comparison between the \(\Xi \) Ξ - \(\alpha \) α folding and \(\Xi \) Ξ - \( \alpha \) α phenomenological potentials is presented and discussed.