Near-yrast structure of the {sup 109}Mo nucleus

Journal Article · Wed Mar 15 00:00:00 EST 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.73.037302· OSTI ID:20771401

Urban, W; Droste, Ch; Rzaca-Urban, T; Zlomaniec, A ^[1]; Durell, J L; Smith, A G; Varley, B J ^[2]; Ahmad, I ^[3]

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1. Faculty of Physics, Warsaw University, ul. Hoza 69, PL-00-681 Warsaw (Poland)
2. Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)
3. Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Excited states in {sup 109}Mo, populated in the spontaneous fission of {sup 248}Cm, were studied using the EUROGAM2 array. Octupole deformation reported previously in {sup 109}Mo was not confirmed. Spin and parity of the ground state were changed. A new band found in this work suggests the 5/2{sup +}[402] neutron configuration for the ground state. In the 222.2 keV band, the 110.8 and 138.9 keV transitions are of M1 + E2 instead of E1 multipolarity, as reported previously. The 222.2 keV band is explained as the 7/2{sup -}[523] neutron configuration.

• OSTI ID: 20771401
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 73, Issue 3; Other Information: DOI: 10.1103/PhysRevC.73.037302; (c) 2006 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
CURIUM 248
E1-TRANSITIONS
E2-TRANSITIONS
EXCITED STATES
GROUND STATES
KEV RANGE
MOLYBDENUM 109
MULTIPOLARITY
NEUTRONS
NUCLEAR DEFORMATION
OCTUPOLES
PARITY
SPIN
SPONTANEOUS FISSION
YRAST STATES