[Delta][ital I]=4 bifurcation in a superdeformed band: Evidence for a C[sub 4] symmetry

Journal Article · Mon Dec 27 04:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.4299· OSTI ID:5196337

Flibotte, S; Andrews, H R; Ball, G C; Beausang, C W; Beck, F A; Belier, G; Byrski, T; Curien, D; Dagnall, P J; de France, G; Disdier, D; Duchene, G; Finck, C; Haas, B; Hackman, G; Haslip, D S; Janzen, V P; Kharraja, B; Lisle, J C; Merdinger, J C ; Mullins, S M; Nazarewicz, W; Radford, D C; Rauch, V; Savajols, H; Styczen, J; Theisen, C; Twin, P J; Vivien, J P; Waddington, J C; Ward, D; Zuber, K; Aberg, S ^[1]

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1. Centre de Recherches Nucleaires; Institut Nationalde Physique Nucleaire et de Physique de Particules Centre National de la Recherche Scientifique Universite Louis Pasteur; F-67037 Strasbourg Cedex (France) AECL Research; Chalk River Laboratories; Chalk River; Ontario; K0J 1J0 (Canada) Oliver Lodge Laboratory; University of Liverpool; Liverpool L69 3BX (United Kingdom) Department of Physics and Astronomy; McMaster University; Hamilton; Ontario; L8S 4M1 (Canada) Schuster Laboratory; University of Manchester; Manchester M139PL (United Kingdom) Joint Instit

The moment of inertia of the yrast superdeformed band in [sup 149]Gd exhibits an unexpected bifurcation at high rotational frequency. States differing by four units of angular momentum show an energy shift of about 60 eV. This indicates the remnant of a new quantum number associated with the fourfold rotational symmetry.

• DOE Contract Number: FG05-87ER40361; FG05-93ER40770
• OSTI ID: 5196337
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:26; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663120 -- Nuclear Structure Models & Methods-- (1992-)
663220 -- Electromagnetic Transitions-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
DAYS LIVING RADIOISOTOPES
DEFORMED NUCLEI
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
EVEN-ODD NUCLEI
GADOLINIUM 149
GADOLINIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
INVARIANCE PRINCIPLES
ISOTOPES
MOMENT OF INERTIA
NUCLEI
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
ROTATIONAL INVARIANCE
SPECTRAL SHIFT
YRAST STATES