
%0 Journal Article
%A Henderson, JR 
%A Lekner, J 
%T A Collective Rotational State of Spherical Nuclei
%J Australian Journal of Physics
%D 1976/10/01
%V 29
%N 5
%P 363-374
%K 
%R https://doi.org/10.1071/PH760363
%U https://www.publish.csiro.au/paper/PH760363 
%X We consider a particular many-body rotational excitation 'P of a spherical self-bound system of particles, of the form studied by Lekner (1974). This angular momentum eigenstate is translationally invariant and thus is not a spurious state. The energy of 'P is found from first principles to be substantially larger than that of the first 2+ excited states of even-even nuclei, with the exception of 208Pb. The quadrupole moment is negative, the g-factor is approximately Z/A and the lifetime is shorter than the single-particle (Weisskopf) value by a factor of the order of A/Z2. It is suggested that these states are the finite system rotational analogues of Feynman's phonons and rotons. 
