Coexistence effects in {sup 187}Au: Evidence for nearly identical diabatic intruder structures

Journal Article · Thu Jun 01 00:00:00 EDT 1995 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.51.R2867· OSTI ID:55125

Rupnik, D; Zganjar, E F ^[1]; Wood, J L ^[2]; Semmes, P B ^[3]; Nazarewicz, W ^[4]

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1. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
2. School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332 (United States)
3. Department of Physics, Tennessee Technological University, Cookeville, Tennessee 38505 (United States)
4. JIHIR and Physics Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831 (United States)

A detailed study of low-energy states in {sup 187}Au, populated by {sup 187{ital m},{ital g}}Hg {beta} decay and using {gamma}-{gamma} and {gamma}-{ital e} coincidence spectroscopy, has revealed two negative-parity band structures with identical spins, nearly identical relative energies, and electric monopole ({ital E}0) transitions connecting the favored members. These bands can be understood as {pi}{ital h}{sub 9/2} and {pi}{ital f}{sub 7/2} intruders coupled to coexisting prolate or near-prolate ({gamma}{le}20{degree}) cores. We propose that the diabatic configurations defining these cores differ by their numbers of {ital N}=5 intruder protons.

• DOE Contract Number: FG05-84ER40159; FG05-87ER40330; FG05-92ER40694; FG05-93ER40770
• OSTI ID: 55125
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 6 Vol. 51; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BETA DECAY
COINCIDENCE METHODS
ENERGY
GOLD 187
MERCURY 187
MONOPOLES
NUCLEAR STRUCTURE
PARITY
SPECTROSCOPY
SPIN