Broken pairs and evolution of collectivity in the [ital A][approx]140 mass region: High spin states of the [sub 60][sup 138]Nd[sub 78] nucleus

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.2990· OSTI ID:7238901

de Angelis, G; Cardona, M A; De Poli, M ^[1]; Lunardi, S; Bazzacco, D; Brandolini, F ^[2]; Vretenar, D ^[3]; Bonsignori, G; Savoia, M ^[4]; Wyss, R ^[5]; Terrasi, F; Roca, V ^[6]

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1. Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Legnaro (Italy)
2. Dipartimento di Fisica dell'Universita, and Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Padova (Italy)
3. Physics Department, Faculty of Science, University of Zagreb, Zagreb (Croatia)
4. Dipartimento di Fisica dell'Universita, and Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Bologna (Italy)
5. Royal Institute of Technology, Physics Department Frescati, Stockholm (Sweden)
6. Dipartimento di Scienze Fisiche dell'Universita, and Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Napoli (Italy)

An in-beam [gamma]-ray study performed with the [sup 121]Sb([sup 19]F,4[ital n]) reaction has established the high spin level structure of the [ital N]=78 nucleus [sup 138]Nd. States up to [ital I]=21[h bar] and 8.5 MeV excitation energy have been indentified. High spin states are described in the framework of the cranking model and of the interacting boson model with broken pairs. The calculations reproduce levels up to [ital I]=18[h bar] including the two 10[sup +] states which, from the feeding cascades, are identified as the [nu][ital h][sub 11/2][sup [minus]1] and [pi][ital h][sub 11/2][sup 2] excitations. Cranked Strutinsky type calculations predict opposite shapes for the two different types of excitations.

• OSTI ID: 7238901
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663220* -- Electromagnetic Transitions-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663560 -- Nuclear Mass Ranges-- A=90-149-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIMONY 121 TARGET
BARYONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHARGED-PARTICLE REACTIONS
COLLECTIVE EXCITATIONS
CRANKING MODEL
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
FERMIONS
FLUORINE 19 REACTIONS
GAMMA SPECTROSCOPY
HADRONS
HEAVY ION REACTIONS
HIGH SPIN STATES
HOURS LIVING RADIOISOTOPES
IN-BEAM SPECTROSCOPY
INTERACTING BOSON MODEL
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
NEODYMIUM 138
NEODYMIUM ISOTOPES
NEUTRONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
RADIOISOTOPES
RARE EARTH NUCLEI
SHELL MODELS
SPECTROSCOPY
STRUTINSKY THEORY
TARGETS