Exited states in Pr-134 were populated in the fusion-evaporation reaction Sn-119(F-19,4n)Pr-134. Recoil distance Doppler-shift and Doppler-shift attenuation measurements using the Euroball spectrometer, in conjunction with the inner Bismuth Germanate ball and the Cologne plunger, were performed at beam energies of 87 MeV and 83 MeV, respectively. Reduced transition probabilities in Pr-134 are compared to the predictions of the two quasiparticle+triaxial rotor and interacting boson fermion-fermion models. The experimental results do not support the presence of static chirality in Pr-134 underlying the importance of shape fluctuations. Only within a dynamical context the presence of intrinsic chirality in Pr-134 can be supported.
Transition probabilities in Pr-134 : a test for chirality in nuclear systems / D. Tonev, G. De Angelis, P. Petkov, A. Dewald , S. Brant, S. Frauendorf, D.L. Balabanski, P. Pejovic, D. Bazzacco, P. Bednarczyk, F. Camera, A. Fitzler, A. Gadea, S. Lenzi, S. Lunardi, N. Marginean, O. Moller, D.R. Napoli, A. Paleni, C.M. Petrache, G. Prete, K.O. Zell, Y.H. Zhang, J.Y. Zhang, Q. Zhong, D. Curien. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 96:5(2006), pp. 052501.052501-1-052501.052501-5.
Transition probabilities in Pr-134 : a test for chirality in nuclear systems
F. Camera;
2006
Abstract
Exited states in Pr-134 were populated in the fusion-evaporation reaction Sn-119(F-19,4n)Pr-134. Recoil distance Doppler-shift and Doppler-shift attenuation measurements using the Euroball spectrometer, in conjunction with the inner Bismuth Germanate ball and the Cologne plunger, were performed at beam energies of 87 MeV and 83 MeV, respectively. Reduced transition probabilities in Pr-134 are compared to the predictions of the two quasiparticle+triaxial rotor and interacting boson fermion-fermion models. The experimental results do not support the presence of static chirality in Pr-134 underlying the importance of shape fluctuations. Only within a dynamical context the presence of intrinsic chirality in Pr-134 can be supported.
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