title: In-beam gamma-ray spectroscopy of very neutron-rich nuclei: excited states in 46S and 48Ar.
abstract: We report on the first in-beam gamma-ray spectroscopy study of the very neutron-rich nucleus 46S. The N=30 isotones 46S and 48Ar were produced in a novel way in two steps that both necessarily involve nucleon exchange and neutron pickup reactions 9Be(48Ca,48K)X followed by 9Be(48K,48Ar+gamma)X at 85.7 MeV/u midtarget energy and 9Be(48Ca,46Cl)X followed by 9Be(46Cl,46S+gamma)X at 87.0 MeV/u midtarget energy, respectively. The results are compared to large-scale shell-model calculations in the sd-pf shell using the SDPF-NR effective interaction and Z-dependent modifications.
authors.affiliation: National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA.
authors.forename: A
authors.initials: A
authors.lastname: Gade
authors.forename: P
authors.initials: P
authors.lastname: Adrich
authors.forename: D
authors.initials: D
authors.lastname: Bazin
authors.forename: B A
authors.initials: BA
authors.lastname: Brown
authors.forename: J M
authors.initials: JM
authors.lastname: Cook
authors.forename: C Aa
authors.initials: CA
authors.lastname: Diget
authors.forename: T
authors.initials: T
authors.lastname: Glasmacher
authors.forename: S
authors.initials: S
authors.lastname: McDaniel
authors.forename: A
authors.initials: A
authors.lastname: Ratkiewicz
authors.forename: K
authors.initials: K
authors.lastname: Siwek
authors.forename: D
authors.initials: D
authors.lastname: Weisshaar