, Volume 54, Issue 12, pp 2407-2418
Date: 21 Oct 2012

Excited States and Strength Functions of 4He in Correlated Gaussians

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Abstract

Resonances and continuum states of 4He are studied using correlated Gaussians. Applicability of the square-integrable functions is tested with use of a complex scaling method. All the known levels of 4He up to the excitation energy of 26 MeV are well understood with a realistic nucleon-nucleon potential. The importance of the tensor force is stressed. Strength functions for isoscalar monopole and spin-dipole tensor operators are investigated.

Dedicated to Prof. Henryk Witała on the occasion of his 60th birthday.