arXiv:nucl-th/0602002·v2·Nuclear Theory
Microscopic shell-model description of the exotic nucleus ^{16}C
S. Fujii (1,2) · T. Mizusaki (1,3) · T. Otsuka (1,2,4) · T. Sebe (5) · A. Arima (6) · ((1)CNS, Univ. of Tokyo, (2)Dept. of Phys., Univ. of Tokyo, (3)Senshu Univ., (4)RIKEN (5)Hosei Univ., (6)Japan Science Foundation)
Abstract
The structure of the neutron-rich carbon nucleus ^{16}C is described by introducing a new microscopic shell model of no-core type. The model space is composed of the 0s, 0p, 1s0d, and 1p0f shells. The effective interaction is microscopically derived from the CD-Bonn potential and the Coulomb force through a unitary transformation theory. Calculated low-lying energy levels of ^{16}C agree well with the experiment. The B(E2;2_{1}^{+} \to 0_{1}^{+}) value is calculated with the bare charges. The anomalously hindered B(E2) value for ^{16}C, measured recently, is well reproduced.
Comments: 14 pages, 4 figures, considerable results and discussion are added, but the main conclusion is unchanged, accepted for publication in Phys. Lett. B