Elsevier

Nuclear Physics A

Volume 490, Issue 2, 19 December 1988, Pages 245-261
Nuclear Physics A

Structure of low-lying states by (α, α′) inelastic scattering at 25 MeV (II). 64,66,68,70Zn isotopes

https://doi.org/10.1016/0375-9474(88)90504-0Get rights and content

Abstract

Elastic and inelastic scattering of 25 MeV α-particles from 64,66,68,70Zn have been measured. Coupled-channels calculations based on the asymmetric rotor model and the vibrational model were performed in 01+-21+-22+-41+ and 01+-21+-02+-22+-41+-3 coupling schemes, respectively. Better descriptions of the experimental angular distributions were obtained with the asymmetric rotor model rather than the vibrational model for the even-parity excited states of 66,68,70Zn. For 64Zn, the harmonic vibrational model reproduces well the data. From the analyses and comparisons of experimental angular distributions, we conclude that a transition occurs between N = 40, 42 for the ground-state band and between N = 38, 40 for the γ-band.

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    This work has been partially supported by CAICYT under project PR84-0208.

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