Published May 1984 | Version v1
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Competition between pairing and quadrupole deformation in the yrast sequence of sup(150,152)Dy

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Description

The yrast spectra are investigated for the non-collective nuclei sup(150,152)Dy using the Nilsson-Strutinsky + blocked BCS model. The separate effects from the pairing force and the quadrupole force (deformation changes) are studied. It is found that the pairing force is most important in describing the yrast line up to Iproportional30, while the quadrupole force is most important for I> or approx.20. The calculated increase of the oblate deformation with increasing spin is explained as an antipairing effect when only valence nucleons are building the total spin and as a polarization effect when the core becomes excited. (orig.)

Availability note (English)

MF available from INIS under the Report Number; Also published in Phys. Scr. (Apr 1985) v. 31(4) p. 233-236.

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Additional details

Publishing Information

Imprint Pagination
20 p.
Report number
NORDITA--84/17(prepr.)

INIS

Country of Publication
Denmark
Country of Input or Organization
Denmark
INIS RN
17015135
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BCS THEORY; DYSPROSIUM 150; DYSPROSIUM 152; HIGH SPIN STATES; NILSSON-MOTTELSON MODEL; NUCLEAR ALIGNMENT; NUCLEAR DEFORMATION; NUCLEAR STRUCTURE; PAIRING ENERGY; ROTATIONAL STATES; STRUTINSKY THEORY; THEORETICAL DATA; YRAST STATES
Descriptors DEC
ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BINDING ENERGY; DATA; DEFORMATION; DYSPROSIUM ISOTOPES; ELECTRON CAPTURE RADIOISOTOPES; ENERGY; ENERGY LEVELS; EVEN-EVEN NUCLEI; EXCITED STATES; INFORMATION; INTERMEDIATE MASS NUCLEI; ISOTOPES; MATHEMATICAL MODELS; NUCLEAR MODELS; NUCLEI; NUMERICAL DATA; RADIOISOTOPES; RARE EARTH NUCLEI