A. D. Ayangeakaa, U. Garg, M. A. Caprio, M. P. Carpenter, S. S. Ghugre, R. V. F. Janssens, F. G. Kondev, J. T. Matta, S. Mukhopadhyay, D. Patel, D. Seweryniak, J. Sun, S. Zhu, S. Frauendorf
Low-lying collective excitations in even-even vibrational and transitional nuclei may be described semi-classically as quadrupole running waves on the surface of the nucleus ("tidal waves"), and the observed vibrational-rotational behavior can be thought of as resulting from a rotating condensate of interacting $d$ bosons. These concepts have been investigated by measuring lifetimes of the levels in the yrast band of the $^{102}$Pd nucleus with the Doppler Shift Attenuation Method. The extracted $B(E2)$ reduced transition probabilities for the yrast band display a monotonic increase with spin, in agreement with the interpretation based on rotation-induced condensation of aligned $d$ bosons.
View original:
http://arxiv.org/abs/1301.2391
No comments:
Post a Comment