Importance of quadrupole coupling for low energy pion charge exchange reactions

W. J. Gerace, W. J. Leonard, and D. A. Sparrow
Phys. Rev. C 34, 353 – Published 1 July 1986
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Abstract

Pion single and double charge exchange reactions at 50 MeV on C14 are studied using a conventional coupled channels approach. Inclusion of quadrupole transitions through the 2+ T=1 state in N14 is essential for understanding these reactions. Fitting the single charge exchange data and including quadrupole contributions lead directly to a reasonable description of the double charge exchange data. It is the deep forward minimum of the single charge exchange data, not the forward peaking of the double charge exchange data, that is more likely to have new implications for the pion-nucleus interactions. Investigation of the O18 double charge exchange data supports these conclusions.

  • Received 17 March 1986

DOI:https://doi.org/10.1103/PhysRevC.34.353

©1986 American Physical Society

Authors & Affiliations

W. J. Gerace and W. J. Leonard

  • Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01003

D. A. Sparrow

  • Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104 and Department of Physics, Temple University, Philadelphia, Pennsylvania 19122

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Vol. 34, Iss. 1 — July 1986

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