Pronounced Shape Change Induced by Quasiparticle Alignment

Algora, Alejandro; De Angelis, G.; Brandolini, F.; Gadea Raga, Andrés; Farnea, E.; Gelletly, W.; Bazzacco, D.; Bizzeti, P.G.; Bizzeti Sona, A. M.; Martínez Pérez, Trinitario; Rubio Barroso, Berta; Skoda, S.; Ur, Calin A.

Pronounced Shape Change Induced by Quasiparticle Alignment

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URI: http://hdl.handle.net/10550/42767

DOI: 10.1103/PhysRevC.61.031303

Publication date

2000

Authors

Martínez Pérez, Trinitario

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Abstract

Mean lifetimes of high-spin states of 74Kr have been determined using the Doppler-shift attenuation method. The high-spin states were studied using the 40Ca(40Ca,α2p) reaction at a beam energy of 160 MeV with the GASP γ-ray spectrometer. The ground-state band and negative parity side band show the presence of three different configurations in terms of transitional quadrupole deformations. A dramatic shape change was found along the ground-state band after the S-band crossing. The deduced quadrupole deformation changes are well reproduced by cranked Woods-Saxon Strutinsky calculations.

Keywords

Física

Bibliographic reference

Algora, Alejandro De Angelis, G. Brandolini, F. Gadea Raga, Andrés Farnea, E. Gelletly, W. Bazzacco, D. Bizzeti, P.G. Bizzeti Sona, A. M. Martínez Pérez, Trinitario Rubio Barroso, Berta Skoda, S. Ur, Calin A. 2000 Pronounced Shape Change Induced by Quasiparticle Alignment Physical Review C 61 3 031303

URI

http://hdl.handle.net/10550/42767

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22 - Física

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