HAL : in2p3-00267472, version 1
 European Physical Journal A 35 (2008) 135-158
 Investigation of lifetimes in quadrupole bands of $^{142}$Gd
 EUROBALL Collaboration(s)
 (2008)
 For a level scheme investigation of ^{142}Gd an experiment with the $\gamma$-spectrometer EUROBALLIII has been carried out and lifetimes have been measured with EUROBALL IV using the Doppler-shift attenuation method. The high-spin states have been populated in these experiments by means of the ^{99}Ru(^{48}Ti, 2p3n) reaction at a beam energy of 240MeV and the ^{114}Sn(^{32}S, 2p2n) reaction at 160MeV, respectively. Reduced E2 transition probabilities B(E2) were determined for 15 members of four quadrupole bands. For the interpretation of the positive-parity even-spin quadrupole bands, calculations in the cranked Nilsson-Strutinsky as well as interacting boson models have been performed. From the former calculations it was concluded that the high-spin states of the (+ , 0)_{1} band in ^{142}Gd represent a triaxial nucleus rotating around the longest principal axis.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 in2p3-00267472, version 1 http://hal.in2p3.fr/in2p3-00267472 oai:hal.in2p3.fr:in2p3-00267472 Contributeur : Béatrice Forrler <> Déposé pour le compte de : Gilbert Duchêne <> Soumis le : Jeudi 27 Mars 2008, 14:58:00 Dernière modification le : Jeudi 27 Mars 2008, 15:32:54