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arXiv · 1009.4965

Rotation alignment in neutron-rich Cr isotopes: A probe of deformed single-particle levels across N=40

Yingchun Yang·Yang Sun·Kazunari Kaneko·Munetake Hasegawa
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Abstract

Recent experiments have reached the neutron-rich Cr isotope with N=40 and confirmed enhanced collectivity near this sub-shell. The current data focus on low-spin spectroscopy only, with little information on the states where high-j particles align their spins with the system rotation. By applying the Projected Shell Model, we show that rotation alignment occurs in neutron-rich even-even Cr nuclei as early as spin 8 and, due to shell filling, the aligning particles differ in different isotopes. It is suggested that observation of irregularities in moments of inertia is a direct probe of the deformed single-particle scheme in this exotic mass region.

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Yingchun Yang, Yang Sun, Kazunari Kaneko, Munetake Hasegawa. 2010-09-25. Rotation alignment in neutron-rich Cr isotopes: A probe of deformed single-particle levels across N=40. https://doi.org/10.1103/physrevc.82.031304

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