Identification of a high-spin isomer in {sup 99}Mo

Journal Article · Mon Oct 15 00:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.047303· OSTI ID:21067852

Jones, G A; Regan, P H; Walker, P M; Podolyak, Zs; Stevenson, P D; Garnsworthy, A B; Liu, Z; Thompson, N J ^[1]; Carpenter, M P; Janssens, R V. F.; Khoo, T L; Seweryniak, D; Zhu, S ^[2]; Carroll, J J ^[3]; Chakrawarthy, R S ^[4]; Chowdhury, P ^[5]; Kondev, F G ^[6]; Lane, G J ^[7]; Williams, S J ^[1]

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1. Department of Physics, University of Surrey, Guildford GU2 7XH (United Kingdom)
2. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
3. Department of Physics and Astronomy, Youngstown, Ohio 44555 (United States)
4. TRIUMF, 4004 Westbrook Mall, Vancouver, British Columbia V6T 2A3 (Canada)
5. University of Massachusetts Lowell, Lowell, Massachusetts 01854 (United States)
6. Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
7. Department of Nuclear Physics, RSPhysSE, Australian National University, Canberra 0200 (Australia)

A previously unreported isomer has been identified in {sup 99}Mo at an excitation energy of E{sub x}=3010 keV, decaying with a half-life of T{sub 1/2}=8(2) ns. The nucleus of interest was produced following fusion-fission reactions between a thick {sup 27}Al target frame and a {sup 178}Hf beam at a laboratory energy of 1150 MeV. This isomeric state is interpreted as an energetically favored, maximally aligned configuration of {nu}h{sub (11/2)} x {pi}(g{sub (9/2)}){sup 2}.

• OSTI ID: 21067852
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 76, Issue 4; Other Information: DOI: 10.1103/PhysRevC.76.047303; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27
ALUMINIUM 27 TARGET
EXCITATION
FISSION
HAFNIUM 178
HALF-LIFE
HEAVY ION FUSION REACTIONS
ISOMERIC NUCLEI
KEV RANGE
MEV RANGE
MOLYBDENUM 99
NUCLEAR STRUCTURE
SPIN