Microscopic shell-model description of the exotic nucleus ^{16}C

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.

14 pages, 4 figures, considerable results and discussion are added, but the main conclusion is unchanged, accepted for publication in Phys. Lett. B

References in corpus (10)

• Realistic models of pion-exchange three-nucleon interactions
• Quantum Monte Carlo Calculations of Light Nuclei
• Anomalously hindered E2 strength B(E2;2_1^+ -> 0^+) in 16C
• Effective operators within the ab initio no-core shell model
• Deformation of C isotopes
• Suppression of core polarization in halo nuclei
• Charge-dependent calculations of single-particle energies in nuclei around ^{16}O with modern nucleon-nucleon interactions
• Structure of and E2 transition in ${}^{16}$C in a ${}^{14}$C+n+n model
• Three-body model calculations for 16C nucleus
• The unitary-model-operator approach to nuclear many-body problems

Cited by in corpus (6)

• Ab-initio shell model with a core
• Lifetime measurements of first excited states in 16,18C
• Ab initio effective interactions for sd-shell valence nucleons
• Evidence for Z=6 `magic number' in neutron-rich carbon isotopes
• Systematics of 2+ states in C isotopes from the ab initio no-core shell model
• Structure of 16C from analyses of proton scattering data and the B(E2) problem