90,92,94,96Zr (α, α′)
measuredσ(Θ) of 2+ and 3− states
deduced electromagnetic and isoscalar transition rates,M n /M p ratios
Springer Online Journal Archives 1860-2000
Abstract Coulomb-nuclear interference in inelastic scattering of 35.4 MeVα-particles from the stable even Zr isotopes was studied. In the framework of a collective DWBA analysis isoscalar and electromagnetic transition rates for low lying 2+ and 3− states were derived. The experimentalB (E2) values are in good agreement with results obtained by purely electromagnetic methods. The deducedM n /M p ratios of the 2 1 + levels exhibit a surprisingly large increase with increasing neutron number.
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