Pronounced shape change induced by quasiparticle alignment

A. Algora, G. De Angelis, F. Brandolini, R. Wyss, A. Gadea, E. Farnea, W. Gelletly, S. Lunardi, D. Bazzacco, C. Fahlander, A. Aprahamian, F. Becker, P. G. Bizzeti, A. Bizzeti-Sona, D. De Acuña, M. De Poli, J. Eberth, D. Foltescu, S. M. Lenzi, T. MartinezD. R. Napoli, P. Pavan, C. M. Petrache, C. Rossi Alvarez, D. Rudolph, B. Rubio, S. Skoda, P. Spolaore, R. Menegazzo, H. G. Thomas, C. A. Ur

Research output: Contribution to journalArticle

31 Citations (Scopus)

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.

Original languageEnglish
Article number031303
Pages (from-to)313031-313035
Number of pages5
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number3
Publication statusPublished - Mar 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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  • Cite this

    Algora, A., De Angelis, G., Brandolini, F., Wyss, R., Gadea, A., Farnea, E., Gelletly, W., Lunardi, S., Bazzacco, D., Fahlander, C., Aprahamian, A., Becker, F., Bizzeti, P. G., Bizzeti-Sona, A., De Acuña, D., De Poli, M., Eberth, J., Foltescu, D., Lenzi, S. M., ... Ur, C. A. (2000). Pronounced shape change induced by quasiparticle alignment. Physical Review C - Nuclear Physics, 61(3), 313031-313035. [031303].