O16 + Ca48 reaction at 56 MeV. I. Transitions to resolved levels

D. G. Kovar, W. Henning, B. Zeidman, Y. Eisen, J. R. Erskine, H. T. Fortune, T. R. Ophel, P. Sperr, and S. E. Vigdor
Phys. Rev. C 17, 83 – Published 1 January 1978
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Abstract

All direct reaction channels of significant strength (σ50 μb) in the O16 + Ca48 reaction at Elab(O16)=56 MeV were measured using a ΔEE time-of-flight telescope system. Excitation spectra with energy resolutions 200 keV full width at half maximum were obtained for outgoing ions B11,12,13, C12,13,14,15, N14,15,16,17, and O16,17,18,19. Angular distributions were obtained for the strongest transitions observed in inelastic scattering, the single-nucleon transfer reactions (O16, N15) and (O16, O17), the two-nucleon transfer reactions (O16, C14), (O16, N14), and (O16, O18), the three-nucleon transfer reactions (O16, C13), and the "exotic" transfers (O16, N16) and (O16, C15). Comparison of distorted-wave Born-approximation calculations for inelastic scattering, and for one- and two-nucleon transfer reactions to experiment suggest that reaction processes more complex than the one-step process are quite important in a majority of the transitions studied.

[NUCLEAR REACTIONS Ca48(O16, O16), (O16, O16), (O16, O17,18), (O16, N14,15,16), (O16, C13,14,15); measured σ(θ); θ=460, Δθ=13, Ca48(16, O19), (O16, N17), (O16, C12), (O16, B1113); measured σ. Elab=56 MeV, resolution 250 keV, enriched targets. Optical-model parameters deduced, DWBA calculations compared with data for (O16, O16), (O16, O17,18) (O16, N14,15), and (O16, C13,14).]

  • Received 23 August 1977

DOI:https://doi.org/10.1103/PhysRevC.17.83

©1978 American Physical Society

Authors & Affiliations

D. G. Kovar, W. Henning, B. Zeidman, Y. Eisen*, J. R. Erskine, H. T. Fortune, T. R. Ophel, P. Sperr§, and S. E. Vigdor

  • *Present address: Weizmann Institute of Science, Rehovoth, Israel.
  • Present address: University of Pennsylvania, Philadelphia, Pennsylvania 19174.
  • Present address: Australian National University, Canberra, Australia.
  • §Present address: Technical University of Munich, Munich, West Germany.
  • Present address: Indiana University, Bloomington, Indiana 47401.

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Vol. 17, Iss. 1 — January 1978

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