Transitional nucleus sup 101 Ag: Spin-stabilized deformation in odd Ag isotopes

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.1564· OSTI ID:7286331

Crowell, B; Chowdhury, P; Blumenthal, D J; Ennis, P J; Freeman, S J; Lister, C J; Smolen, S; Winter, C ^[1]

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1. A. W. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06511 (United States)

High-spin states of the transitional nucleus {sup 1}{sub 47}{sup 01}Ag{sub 54} have been studied up to spin {ital J}=41/2 with the reaction {sup 70}Ge({sup 35}Cl,2{ital p}2{ital n}), using {gamma}-{gamma} coincidence and {gamma}-ray angular-distribution measurements. The low-spin states of this nucleus involve single-particle excitations, with little evidence of quadrupole collectivity. At high spins, a coupled band structure has been identified, consisting of a cascade of {Delta}{ital J}=1 transitions with stretched {ital E}2 crossover transitions, similar to high-spin negative-parity bands observed in the heavier odd Ag nuclei. Detailed cranked Nilsson-Strutinski calculations are presented, which predict deformed rotational states based on configurations involving {nu}{ital h}{sub 11/2} excitations, and agree well with the energy levels of these high-spin negative-parity band structures. The changing nature of collectivity in these nuclei above the {ital N}=50 shell closure is discussed.

• DOE Contract Number: FG02-91ER40609
• OSTI ID: 7286331
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 45:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663560* -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CHLORINE 35 REACTIONS
COINCIDENCE METHODS
COLLECTIVE EXCITATIONS
COLLECTIVE MODEL
COUNTING TECHNIQUES
DATA
DISTRIBUTION
E2-TRANSITIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
EXPERIMENTAL DATA
FERMIONS
GERMANIUM 70 TARGET
HADRONS
HEAVY ION REACTIONS
HIGH SPIN STATES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
M1-TRANSITIONS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 100-1000
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
NUMERICAL DATA
NUMERICAL SOLUTION
ODD-EVEN NUCLEI
PARITY
PARTICLE PROPERTIES
PROTONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SILVER 101
SILVER ISOTO
TARGETS
VIBRATIONAL STATES
YRAST STATES