Level structures at high spins in nuclei at and near n=52

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Bulletin of the American Physical Society

OSTI ID:255477

Ghugre, S S; Garg, E; Smith, G ^[1]

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1. and others

Theoretical calculations have indicated several interesting possibilities such as superdeformed structures, collective excitations and band terminations in the mass region A {approximately}90-100. High spin states in several nuclei in this region were populated using a 140 MeV {sup 32}S beam on a {sup 65}Cu target. Triple-{gamma} coincidences were measured using the GAMMASPHERE facility. Several new transitions in {sup 94,95}Mo, {sup 94,95}Tc, {sup 96,97,98}Ru and {sup 98}Rh have been identified. The N = 51, 52 isotones in these nuclei ({sup 94}Mo, Tc and {sup 96}Ru) exhibit a {gamma} ray with energy of about 2 MeV. Such a transition is a signature of the N = 50 core excitation. Preliminary investigations of the level structures for the N = 53, 54 isotones suggest a collective behaviour. Level schemes of these nuclei will be presented, and discussed within the framework of spherical shell model calculations.

• OSTI ID: 255477
• Report Number(s): CONF-9510116--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 10 Vol. 40; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COPPER 65 TARGET
DEFORMED NUCLEI
HIGH SPIN STATES
NUCLEAR STRUCTURE
SHELL MODELS
SULFUR 32 REACTIONS