EPJ Web of Conferences 17, 07003 (2011)
https://doi.org/10.1051/epjconf/20111707003

Studies of light neutron-excess systems from bounds to continuum

Department of Pure and Applied Physics, Kansai University, Yamate-cho, Suita, Japan, 564-8680

^a e-mail: itomk@kansai-u.ac.jp

Abstract

The generalized two-center cluster model (GTCM), which can handle various single particle config urations in general two center systems, is applied to the light neutron-rich system, ¹²Be= α+α+4N. We discuss the change of the neutrons’ configuratio around two α-cores as a variation of an excitation energy. We show that the covalent, ionic and atomic configuration appear in the unbound region above the α+⁸He_g.s. particledecay threshold. The GTCM calculation is also applied to even Be isotopes, and the systematics on the structural changes from bound region to continuum is discussed.