Nucl.Phys. A458, 1-11, 1986

ALPHA-SCATTERING FROM 92ZR AND 94ZR,

P. Singh, D. Rychel, R. Gyufko, B. Van Kruchten, Michael Lahanas and C.A.Wiedner,

Abstract

Scattering of 35.4 MeV a -particles from ⁹²Zr and ⁹⁴Zr ave been studied with an energy resolution of 25-30 keV. Angular distributions were measured from 10 to 45 degrees for an Ex range of up to 6.1 MeV and 4.4 MeV for ⁹²Zr and ⁹⁴Zr respectively. Several new spin assignments have been made by comparing angular distributions with collective DWBA calculations. An implicit folding procedure was used to derive isoscalar transition rates, which for E_x > 2.5 MeV were previously unknown. Most of the levels are well described by a vibrational model form factor.

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