In-Beam {gamma}-Ray Spectroscopy of Very Neutron-Rich Nuclei: Excited States in {sup 46}S and {sup 48}Ar

Journal Article · Fri May 08 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.182502· OSTI ID:21316686

Gade, A; Brown, B A; Cook, J M; Glasmacher, T; McDaniel, S; Ratkiewicz, A; Siwek, K ^[1]; Adrich, P; Bazin, D; Diget, C A; Weisshaar, D ^[1]

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1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)

We report on the first in-beam {gamma}-ray spectroscopy study of the very neutron-rich nucleus {sup 46}S. The N=30 isotones {sup 46}S and {sup 48}Ar were produced in a novel way in two steps that both necessarily involve nucleon exchange and neutron pickup reactions {sup 9}Be({sup 48}Ca,{sup 48}K)X followed by {sup 9}Be({sup 48}K,{sup 48}Ar+{gamma})X at 85.7 MeV/u midtarget energy and {sup 9}Be({sup 48}Ca,{sup 46}Cl)X followed by {sup 9}Be({sup 46}Cl,{sup 46}S+{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.

• OSTI ID: 21316686
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON 48
BERYLLIUM 9 TARGET
CALCIUM 48 BEAMS
CALCIUM 48 REACTIONS
CHLORINE 46
EXCITED STATES
GAMMA SPECTROSCOPY
ISOTONIC NUCLEI
MEV RANGE 10-100
NEUTRON-RICH ISOTOPES
PICKUP REACTIONS
POTASSIUM 48
SHELL MODELS
SULFUR 46