Antihalo effects on reaction cross sections for C 14,15,16 isotopes

Takuma Matsumoto, Masanobu Yahiro

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We study antihalo effects on reaction cross sections σR for C14,15,16 scattering from a C12 target at 83 MeV/nucleon, using the g-matrix double-folding model. C15 is described by the 14C+n two-body model that reproduces the measured large s-wave spectroscopic factor, i.e., the shell inversion that the 1s1/2 orbital is lower than the 0d5/2 orbital in energy. C16 is described by the 14C+n+n three-body model with the phenomenological three-body force (3BF) that explains the measured small s-wave spectroscopic factor. The 3BF allows the single-particle energies of the 14C+n subsystem to depend on the position r of the second neutron from the center of mass of the subsystem. The 1s1/2 orbital is lower than the 0d5/2 orbital for large r, but the shell inversion is restored for small r. Antihalo effects due to the "partial shell inversion" make σR for C16 smaller than that for C15. We also investigate projectile breakup effects on the mass-number dependence of σR with the continuum-discretized coupled-channel method.

Original languageEnglish
Article number041602
JournalPhysical Review C - Nuclear Physics
Volume90
Issue number4
DOIs
Publication statusPublished - Oct 6 2014

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isotopes
orbitals
cross sections
inversions
particle energy
folding
center of mass
projectiles
continuums
neutrons
matrices
scattering
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Antihalo effects on reaction cross sections for C 14,15,16 isotopes. / Matsumoto, Takuma; Yahiro, Masanobu.

In: Physical Review C - Nuclear Physics, Vol. 90, No. 4, 041602, 06.10.2014.

Research output: Contribution to journalArticle

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