Phase transition in exotic nuclei along the $N=Z$ line

Details Phase transition in exotic nuclei along the $N=Z$ line Phase transition in exotic nuclei along the $N=Z$ line

2006-11-02

arxiv.org/abs/nucl-th/0611004v1

Phys.Lett.B656:51-55,2007

Physics

Nuclear Physics

Nuclear Theory

4 pages, 5 figures, submitted to Phys. Rev. Lett

Scientific paper

10.1016/j.physletb.2007.09.017

The abrupt structure change from the nuclei of $N=Z \le 35$ to those of $N=Z \ge 36$ is investigated by means of shell model calculations. The basic features of the even-even and odd-odd nuclei under consideration are nicely reproduced. A sudden jump of nucleons into the upper $g_{9/2}d_{5/2}$ shell at $N=Z=36$ is found to be the main reason that causes the qualitative structure difference. It is argued that the structure change can be viewed as a decisive change of the mean field, or a phase transition, along the $N=Z$ line.

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