Experimental Test of One-Pion Exchange and Partial Conservation of Axial-Vector Current in Proton-Nucleus Charge-Exchange Reactions at 144 MeV

G. L. Moake, L. J. Gutay, R. P. Scharenberg, P. T. Debevec, and P. A. Quin
Phys. Rev. Lett. 43, 910 – Published 24 September 1979
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Abstract

We have measured the differential cross sections of the (p,n) reaction on Li6, C12, and N14 to the ground state of the final nucleus (ΔJ=1, ΔI=1, ΔP=0) at Ep=144 MeV and 0°<θlab<20°. We treat the nuclei as elementary particles, extract the initial-nucleus-pion-final-nucleus coupling constants, and compare them with predictions based on the partial conservation of axial-vector current hypothesis. The calculations, which have no free parameters, agree with the data for Li6 and C12, but not for N14.

  • Received 16 April 1979

DOI:https://doi.org/10.1103/PhysRevLett.43.910

©1979 American Physical Society

Authors & Affiliations

G. L. Moake, L. J. Gutay, and R. P. Scharenberg

  • Department of Physics, Purdue University, West Lafayette, Indiana 47907

P. T. Debevec*

  • Department of Physics, Indiana University, Bloomington, Indiana 47401

P. A. Quin

  • Department of Physics, University of Wisconsin, Madison, Wisconsin 53706

  • *Present address: Department of Physics, University of Illinois, Urbana, Ill. 61801.

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Vol. 43, Iss. 13 — 24 September 1979

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