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α-heavy ion elastic scattering; microscopic calculations; absorption effects

A relatively simple procedure using nuclear interaction calculated microscopically from two-nucleon potential employing equivalence of resonating group method and generator coordinate method has been used to calculate the differential cross-sections (DCS) forα +²⁰Ne elastic scattering atE_lab=18.0, 20.2, 21.9, 23.0 and 27.2 MeV. The absorption effects due to the opening of the non-elastic channels are taken into account approximately by the sharp cut-off of lower partial waves. The anomalous large oscillations of the DCS at backward angles atE_lab=18.0 and 27.2 MeV are reproduced. The calculated results are in fair agreement with the experimental data.

Ashok Kumar¹

1. Post Graduate Department of Physics, D. B. S. College, Dehra Dun - 248 001, India

Published

November 1990

Manuscript received

17 February 1990

Manuscript revised

16 July 1990