Fine structure in the {alpha} decay of {sup 189}Bi

Journal Article · Fri Feb 28 23:00:00 EST 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.55.1192· OSTI ID:524962

Wauters, J; Bingham, C R ^[1]; Batchelder, J C; Zganjar, E F ^[2]; Bingham, C R; Toth, K S ^[3]; Blumenthal, D J; Brown, L T; Conticchio, L F; Davids, C N; Seweryniak, D ^[4]; Brown, L T ^[5]; Conticchio, L F; Walters, W B ^[6]; Davinson, T; Irvine, R J; Woods, P J ^[7]

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1. University of Tennessee, Knoxville, Tennessee 37996 (United States)
2. Louisiana State University, Baton Rouge, Louisiana 70803 (United States)
3. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
4. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
5. Vanderbilt University, Nashville, Tennessee 37235 (United States)
6. University of Maryland, College Park, Maryland 20742 (United States)
7. University of Edinburgh, EH9 3JZ (United Kingdom)

A detailed {alpha}-decay study was performed for {sup 189m,g}Bi produced in the reaction of {sup 95}Mo on {sup 96}Mo at 418 MeV. Evaporation residues were selected in-flight using the Argonne fragment mass analyzer and implanted into a double sided silicon strip detector. The correlation technique between implants and subsequent decays was used to observe new weak {alpha} branches of {sup 189}Bi to excited states in {sup 185}Tl. A more precise value of 182(8) keV for the excitation energy of the {pi}s{sub 1/2} intruder state in {sup 189}Bi was determined. The {alpha} decay of the {sup 189}Bi (9/2{sup {minus}}) ground state to the {pi}d{sub 3/2} level at 284 keV was observed for the first time. In addition, the {alpha} decay of {sup 188}Bi was remeasured. Reduced widths for the {alpha} decays of odd-A {sup 189{endash}197m,g}Bi nuclei to states in their Tl daughters are discussed. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-96OR22464; FG05-84ER40159; FG05-87ER40361; FG05-88ER40418; W-31109-ENG-38
• OSTI ID: 524962
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 55; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALPHA DECAY
BISMUTH 189
BISMUTH ISOTOPES
EVAPORATION
EXCITATION
EXCITED STATES
FINE STRUCTURE
GROUND STATES
HEAVY ION REACTIONS
MOLYBDENUM 95
MOLYBDENUM 96 TARGET
THALLIUM 185
WIDTH
alpha-decay
nuclear collective states
nuclear energy levels
nuclei with mass number 150 to 189
nuclei with mass number 190 to 219