Analyzing powers for mirror states in 12C(6Li,7Li/7Be) at E6Li=50 MeV: Evaluation of channel coupling

P. L. Kerr, K. W. Kemper, P. V. Green, K. Mohajeri, E. G. Myers, and B. G. Schmidt
Phys. Rev. C 55, 2441 – Published 1 May 1997
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Abstract

A complete set (iT11,T20,T21,T22) of analyzing powers (AP’s) has been obtained for the single nucleon transfer reaction 12C(6Li,7Li)11C. In addition, iT11 and T21 AP data have been obtained for 12C(6Li,7Be)11B. A finite range distorted wave Born approximation calculation provides a qualitatively good description of the ground-state transfer data iT11, but is out of phase at small angles. It describes the magnitude but not the detail of the rank-2 AP over the measured angular range. A coupled-channels Born approximation (CCBA) analysis describes the elastic, inelastic, and ground-state transfer reaction cross section and AP data well. The excited-state transfer cross section description is also good, but the AP data are less well described. CCBA calculations indicate that coupling to states in 6Li and 12C is not crucial to the description, but that coupling in the final state between the ground and first excited states of 7Li or 7Be is needed to describe the small-angle oscillations in the ground-state transfer iT11 data.

  • Received 27 November 1996

DOI:https://doi.org/10.1103/PhysRevC.55.2441

©1997 American Physical Society

Authors & Affiliations

P. L. Kerr, K. W. Kemper, P. V. Green, K. Mohajeri, E. G. Myers, and B. G. Schmidt

  • Department of Physics, Florida State University, Tallahassee, Florida 32306-3016

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Vol. 55, Iss. 5 — May 1997

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