Recoil-distance lifetime measurements in {sup 96,97,98}Ru: Search for possible onset of collectivity at N{>=}52

Journal Article · Tue Feb 01 04:00:00 EST 2000 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.61.024301· OSTI ID:20215375

Kharraja, B ^[1]; Garg, U ^[1]; Ghugre, S S ^[1]; Jin, H ^[1]; Janssens, R V. F. ^[2]; Ahmad, I ^[2]; Amro, H ^[2]; Carpenter, M P ^[2]; Fischer, S ^[2]; Khoo, T L ^[2]

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1. Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556 (United States)
2. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Lifetimes of high-spin states in the N=52-54 Ru nuclei have been investigated via the {sup 65}Cu({sup 36}S,pyn){sup 96,97,98}Ru (y=4,3,2) reactions using the recoil-distance Doppler-shift technique. The data were collected in coincidence mode. Lifetimes have been extracted for both the positive- and the negative-parity states in {sup 96}Ru and {sup 98}Ru and for the positive-parity states in {sup 97}Ru. The levels studied have lifetimes in the range 2-31 ps. The observed reduced transition probabilities B(E2) and B(M1) are compared with the predictions of the shell model. Theoretical implications of these results are discussed. (c) 1999 The American Physical Society.

• OSTI ID: 20215375
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 61; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COPPER 65 TARGET
ENERGY LEVELS
EXPERIMENTAL DATA
HEAVY ION REACTIONS
HIGH SPIN STATES
LIFETIME
RUTHENIUM ISOTOPES
SHELL MODELS
SULFUR 36
THEORETICAL DATA