Elastic Scattering of ⁶Li+¹²C at 4.5-63 MeV Laboratory Energies

The experimental differential cross section (CS), analyzing power (AP) iT₁₁, T₂₀, T₂₁, T₂₂ data of ⁶Li+¹²C elastic scattering between 4.5 ≤ E_lab ≤ 63 MeV are analyzed in the optical model (OPM) using non-monotonic (NM) nucleus–nucleus potential. The real part of the NM potentials is derived from the Pauli-laden energy density functional (EDF) formalism in the sudden approximation. The non-central static spin-orbit (SO) and tensor potentials and the imaginary parts are taken phenomenologically. The effect of strong absorption radius on the CS and AP data are found very important. The simple OPM using the NM potentials is amazingly successful in describing the CS and AP data without any need of renormalization NR. The experimental fusion cross section (FCS) data in the energy range E_lab = 2.97 − 11.77 MeV are also predicted well in the extrapolation of our predicted FCS in the energy range 4.5 – 20 MeV. Our results are found better than the results from all the Continuum Discretized Coupled-Channels (CDCC) calculations using a virtual ⁶Li→d+α breakup. The nucleon-nucleon (nn) potential used in the present EDF comprises central, spin-orbit and tensor parts of the realistic nn potential which is able to describe all the properties of deuteron and the nn scattering data up to 310 MeV. In fact, CDCC calculation using NM potentials are able to generate DPP, adequate to describe the CS and iT₁₁ of the ⁶Li+¹⁶O elastic scattering without any need for static SO term or renormalization.