Collectivity at N=50: {sup 82}Ge and {sup 84}Se

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.064326· OSTI ID:21388601

Gade, A; Baugher, T; Brown, B A; Glasmacher, T; McDaniel, S; Meharchand, R; Ratkiewicz, A; Walsh, K A ^[1]; Bazin, D; Campbell, C M; Grinyer, G F; Weisshaar, D ^[1]; Honma, M ^[2]; Otsuka, T ^[3]; Tostevin, J A ^[4]

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1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)
2. Center for Mathematical Sciences, University of Aizu, Tsuruga, Ikki-machi, Aizu-Wakamatsu, Fukushima 965-8580 (Japan)
3. Department of Physics and Center for Nuclear Study, University of Tokyo, Hongo, Tokyo 113-0033 (Japan)
4. Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, Surrey GU2 7XH (United Kingdom)

The neutron-rich N=50 isotones {sup 82}Ge and {sup 84}Se were investigated using intermediate-energy Coulomb excitation on a {sup 197}Au target and inelastic scattering on {sup 9}Be. As typical for intermediate-energy Coulomb excitation with projectile energies exceeding 70 MeV/nucleon, only the first 2{sup +} states were excited in {sup 82}Ge and {sup 84}Se. However, in the inelastic scattering on a {sup 9}Be target, a strong population of the first 4{sup +} state was observed for {sup 84}Se, while there is no indication of a similarly strong excitation of the corresponding state in the neighboring even-even isotone {sup 82}Ge. The results are discussed in the framework of systematics and shell-model calculations using three different effective interactions.

• OSTI ID: 21388601
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevC.81.064326; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM 9
BERYLLIUM 9 BEAMS
COULOMB EXCITATION
GERMANIUM 82
GOLD 197 TARGET
INELASTIC SCATTERING
INTERACTIONS
ISOTONIC NUCLEI
MEV RANGE
NEUTRON-RICH ISOTOPES
NEUTRONS
SELENIUM 84
SHELL MODELS
ALKALINE EARTH ISOTOPES
BARYONS
BEAMS
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXCITATION
FERMIONS
GERMANIUM ISOTOPES
HADRONS
INTERMEDIATE MASS NUCLEI
ION BEAMS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MINUTES LIVING RADIOISOTOPES
NUCLEAR MODELS
NUCLEI
NUCLEONS
RADIOISOTOPES
SCATTERING
SECONDS LIVING RADIOISOTOPES
SELENIUM ISOTOPES
STABLE ISOTOPES
TARGETS