Proton decay of an intruder state in {sup 185}Bi

Journal Article · Sun Dec 31 23:00:00 EST 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.592· OSTI ID:278786

Davids, C N; Woods, P J; Penttilae, H T; Batchelder, J C; Bingham, C R; Blumenthal, D J; Brown, L T; Busse, B C; Conticchio, L F; Davinson, T; Henderson, D J; Irvine, R J; Seweryniak, D; Toth, K S; Walters, W B; Zimmerman, B E ^[1]

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1. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

The new proton radioactivity {sup 185{ital m}}Bi has been observed, produced {ital via} the {sup 95}Mo({sup 92}Mo,{ital pn}){sup 185}Bi reaction. Its decay proceeds from the low-lying 1/2{sup +} intruder state in {sup 185}Bi to the {sup 184}Pb ground state with the emission of a proton of energy 1.585{plus_minus}0.009 MeV and a half-life of 44{plus_minus}16 {mu}s. This marks the first observation of proton radioactivity above the {ital Z}=82 closed shell, and it has been used to obtain the admixture of a 0{sup +} intruder state in {sup 184}Pb into the {sup 184}Pb ground-state wave function. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 278786
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 4 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BISMUTH
EMISSION
GROUND STATES
LEAD 184
MOLYBDENUM 92 REACTIONS
MOLYBDENUM 95 TARGET
PROTON DECAY RADIOISOTOPES
WAVE FUNCTIONS