Constraints on the spectra of 17,19C
arXiv:0807.2732 · doi:10.1016/j.nuclphysa.2008.09.007
Abstract
Diverse means are used to investigate the spectra of the radioactive, exotic ions, 17,19C. First, estimates have been made using a shell model for the systems. Information from those shell model studies were then used in evaluating cross sections of the scattering of 70A MeV 17,19C ions from hydrogen. Complementing those studies, a multichannel algebraic scattering (MCAS) theory for n+16,18C coupled-channel problems has been used to identify structures of the compound systems. The results show that the shell model structure assumed for these ions is reasonable with little need of effective charges. The conditions that two excited states exist within a few hundred keV of the ground state places some restriction upon the structure models. Other positive parity states are expected in the low-lying spectra of the two nuclei.
19 pages, 9 figures
References in corpus (11)
- Magic numbers in exotic nuclei and spin-isospin properties of {\it NN} interaction
- An algebraic solution of the multichannel problem applied to low energy nucleon-nucleus scattering
- Probing the 6He halo structure with elastic and inelastic proton scattering
- Unbound excited states in 19,17C
- Role of the Pauli principle in collective-model coupled-channels calculations
- Predicting narrow states in the spectrum of a nucleus beyond the proton drip line
- Structure of ^{19}C from Coulomb dissociation studies
- Collective-coupling analysis of spectra of mass-7 isobars: ^7He, ^7Li, ^7Be, ^7B
- Compound and quasi-compound states in low-energy scattering of nucleons from 12C
- Comparison between two methods of solution of coupled equations for low-energy scattering
- Particle-unstable light nuclei with a Sturmian approach that preserves the Pauli principle