Effective mass B2 and stiffness parameter C2 for quadrupole vibration in even-even spherical nuclei

Abstract

Values of the effective mass B₂ and the stiffness parameter C₂ for quadrupole vibration of even—even spherical nuclei have been computed from the B (E 2) values and energies of first 2⁺ states adopted by Stelson and Gredzins. A comparison of these with values predicted by a liquiddrop model shows B₂ an order of magnitude larger than the predictions. The value of C₂ is usually less than the prediction but at magic numbers is many times greater.