Triple configuration coexistence in {sup 44}S

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.061305· OSTI ID:21502751

Santiago-Gonzalez, D; Wiedenhoever, I; Abramkina, V; Avila, M L; Cottle, P D; Kemper, K W; Rojas, A; Volya, A ^[1]; Baugher, T; Brown, B A; Gade, A; Glasmacher, T; McDaniel, S; Ratkiewicz, A; Meharchand, R ^[2]; Bazin, D; Weisshaar, D ^[2]; Simpson, E C; Tostevin, J A ^[3]

---

1. Department of Physics, Florida State University, Tallahassee, Florida 32306-4350 (United States)
2. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
3. Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)

The neutron-rich N=28 nucleus {sup 44}S was studied using the two-proton knockout reaction from {sup 46}Ar at intermediate beam energy. We report the observation of four new excited states, one of which is a strongly prolate deformed 4{sup +} state, as indicated by a shell-model calculation. Its deformation originates in a neutron configuration which is fundamentally different from the ''intruder'' configuration responsible for the ground-state deformation. Consequently, we do not have three coexisting shapes in {sup 44}S, but three coexisting configurations, corresponding to zero-, one-, and two-neutron particle-hole excitations.

• OSTI ID: 21502751
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 6; Other Information: DOI: 10.1103/PhysRevC.83.061305; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ARGON 46
BEAMS
EXCITATION
EXCITED STATES
KNOCK-OUT REACTIONS
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR DEFORMATION
PROTONS
SHELL MODELS
SULFUR 44
ARGON ISOTOPES
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DEFORMATION
DIRECT REACTIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SULFUR ISOTOPES