Folding-model description of elastic and inelastic scattering of Be9 by Ca40,44 and K39 at 40 MeV

V. Hnizdo, J. Szymakowski, K. W. Kemper, and J. D. Fox
Phys. Rev. C 24, 1495 – Published 1 October 1981
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Abstract

Angular distributions have been measured for elastic scattering of Be9 + Ca40,44 and Be9 + K39 at Elab=40 MeV, covering an angular range up to θc.m=120°(σσR105), and for inelastic scattering of Be9 leading to the first 2+, 3, and 5 states in Ca40, and the first 2+ state in Ca44. The large angle cross sections (θc.m.=173°) measured are an order of magnitude smaller than those reported earlier for Li6 scattering in this mass region. The data are analyzed in terms of the double-folding model with a realistic effective nucleon-nucleon interaction. The need to renormalize the effective interaction by a factor of ∼0.6 is removed when the strong projectile quadrupole effects are treated explicitly in coupled channels calculations. The inelastic cross sections are dominated by the imaginary part of the transition form factor, but the deformation lengths still agree well with the experimental B(EL) values for the L=2, 3, and 5 transitions studied.

NUCLEAR REACTIONS Be9 + K39, Ca40,44, E=40 MeV; elastic and inelastic, Ca40(2+, 3.90 MeV, 3, 3.74 MeV, and 5, 4.49 MeV) and Ca44(2+, 1.16 MeV). Measured σ(θ) up to θc.m.=120° and at θc.m.=173.8°. Double-folding model analysis, DWBA, deduced nuclear deformation lengths.

  • Received 24 March 1981

DOI:https://doi.org/10.1103/PhysRevC.24.1495

©1981 American Physical Society

Authors & Affiliations

V. Hnizdo*, J. Szymakowski, K. W. Kemper, and J. D. Fox

  • Department of Physics, Flordia State University, Tallahassee, Florida 32306

  • *On leave of absence from the Department of Physics, University of the Witwatersrand, Johannesburg, South Africa.

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Vol. 24, Iss. 4 — October 1981

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