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Study of the (89)Y(alpha,alpha)(89)Y reaction close to the Coulomb barrier

, , , , , , , , , and . JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, (January 2008)3rd Europhysics Conference on Nuclear Physics in Astrophysics (NPA3), Dresden, GERMANY, MAR 26-31, 2007.
DOI: 10.1088/0954-3899/35/1/014037

Abstract

In order to check the reliability of global alpha-nucleus optical potential to be used in statistical model calculations, elastic alpha scattering experiments have been carried out at E(c.m). = 18.6 and 15.5 MeV on the even-odd (89)Y nucleus. Moreover, the comparison of the elastic scattering cross section of the (89)Y(alpha, alpha)(89)Y and the previously measured (92)Mo(alpha, alpha)(92)Mo reactions will allow us to investigate the behavior of the optical potential parameters along the N = 50 isotonic chain. The experimental details of the (89)Y(alpha, alpha)(89)Y measurement and the angular distributions are presented here.

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