Spins, Parity, Excitation Energies, and Octupole Structure of an Excited Superdeformed Band in {sup 194}Hg and Implications for Identical Bands

Journal Article · Sat Nov 01 00:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.4100· OSTI ID:564930

Hackman, G; Khoo, T L; Carpenter, M P; Lauritsen, T; Calderin, I J; Janssens, R V; Ackermann, D; Ahmad, I; Agarwala, S; Blumenthal, D J; Fischer, S M; Nisius, D; Reiter, P; Young, J; Amro, H ^[1]; Lopez-Martens, A; Hannachi, F; Korichi, A ^[2]; Amro, H; Moore, E F ^[3] ; Lee, I Y; Macchiavelli, A O ^[4]; Nakatsukasa, T ^[5]

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1. Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, IN2P3-CNRS, F-91405 Orsay (France)
3. North Carolina State University, Raleigh, North Carolina 27695 and TUNL, Durham, North Carolina 27708 (United States)
4. Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
5. UMIST, Manchester M60 1QD (United Kingdom)

An excited superdeformed band in {sup 194}Hg , observed to decay directly to both normal-deformed and superdeformed yrast states, is proposed to be a K{sup {pi}}=2{sup {minus}} octupole vibrational band, based on its excitation energies, spins, and likely parity. The transition energies are identical to those of the yrast superdeformed band in {sup 192}Hg , but originate from levels with different spins and parities. The evolution of transition energies with spin suggests that cancellations between pairing and particle alignment are partly responsible for the identical transition energies. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098; W-31109-ENG-38; W-7405-ENG-48
• OSTI ID: 564930
• Journal Information: Physical Review Letters, Vol. 79, Issue 21; Other Information: PBD: Nov 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
MERCURY 194
SUPERDEFORMED NUCLEI
SPIN
PARITY
YRAST STATES
OCTUPOLES
VIBRATIONAL STATES
EXCITATION
MERCURY 192
ALIGNMENT