Shape study of the N = Z nucleus 72Kr via β decay.
- Resource Type
- Article
- Authors
- Briz, J. A.; Nácher, E.; Borge, M. J. G.; Algora, A.; Rubio, B.; Dessagne, Ph.; Maira, A.; Cano-Ott, D.; Courtin, S.; Escrig, D.; Fraile, L. M.; Gelletly, W.; Jungclaus, A.; Le Scornet, G.; Maréchal, F.; Miehé, Ch.; Poirier, E.; Poves, A.; Sarriguren, P.; Taín, J. L.
- Source
- Physical Review C: Nuclear Physics. Nov2015, Vol. 92 Issue 5, p1-10. 10p.
- Subject
- *SPECTROMETRY
*EXCITATION energy (In situ microanalysis)
*OBLATENESS constant
*ATOMIC nucleus
*NILSSON model
- Language
- ISSN
- 0556-2813
The β decay of the N=Z nucleus 72Kr has been studied with the total absorption spectroscopy technique at ISOLDE (CERN). A total B(GT)=0.79(4)gA²/4π has been found up to an excitation energy of 2.7 MeV. The B(GT) distribution obtained is compared with predictions from state-of-the-art theoretical calculations to learn about the ground state deformation of 72Kr. Although a dominant oblate deformation is suggested by direct comparison with quasiparticle random phase approximation (QRPA) calculations, beyond-mean-field and shell-model calculations favor a large oblate-prolate mixing in the ground state. [ABSTRACT FROM AUTHOR]