Proton backbend in the doubly-magic superdeformed nucleus [sup 144]Gd

Journal Article · Mon Mar 07 04:00:00 EST 1994 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.72.1427· OSTI ID:5122123

Lunardi, S; Bazzacco, D; Rossi-Alvarez, C; Pavan, P ^[1]; de Angelis, G; De Acuna, D; De Poli, M; Maron, G; Rico, J ^[2]; Stuch, O; Weil, D ^[3]; Utzelmann, S; Hoernes, P ^[4]; Satula, W; Wyss, R ^[5]

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1. Dipartimento di Fisica and Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Padova (Italy)
2. Istituto Nazionale di Fisica Nucleare Laboratori Nazionali di Legnaro, Legnaro (Italy)
3. Institut fuer Kernphysik der Universitaet zu Koeln, Koeln (Germany)
4. Institut fuer Kernphysik, Kernforschungsanlage Juelich, Juelich (Germany)
5. Royal Institute of Technology, Physics Department Frescati, Frescativ. 24, Stockholm (Sweden)

A discrete superdeformed rotational band has been discovered in [sup 144]Gd following the reaction [sup 100]Mo([sup 48]Ti, 4[ital n])[sup 144]Gd at 221 MeV. The dynamical moment of inertia shows a sharp irregularity at [h bar][omega]=0.45 MeV. The intensity of the [gamma]-ray transitions suggests that the irregularity can be associated with a backbend, which is interpreted in terms of the [ital N]=6 proton band crossing. The experimental results are in good agreement with cranked mean field calculations, which indicate the presence of large shell gaps for both protons and neutrons.

• OSTI ID: 5122123
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 72:10; 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
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
CRANKING MODEL
DAYS LIVING RADIOISOTOPES
DEFORMED NUCLEI
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
GADOLINIUM 146
GADOLINIUM ISOTOPES
GAMMA RADIATION
HADRONS
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOTOPES
MAGIC NUCLEI
MATHEMATICAL MODELS
MEAN-FIELD THEORY
MOLYBDENUM 100 REACTIONS
MOMENT OF INERTIA
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PROTONS
RADIATIONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
TARGETS
TITANIUM 48 TARGET