Low energy angular distributions for the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">C</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>12</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow><mo>(</mo><mi>e</mi><mo>,</mo><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow><mrow><msup><mrow><mi>e</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow><mo>)</mo></math></span> reaction

R. M. Sealock; H. S. Caplan; G. J. Lolos; W. C. Haxton

doi:10.1103/PhysRevC.23.1293

Rapid Communication

Low energy angular distributions for the ${}^{12}C (e, π^{+} e^{'})$ reaction

R. M. Sealock, H. S. Caplan, G. J. Lolos, and W. C. Haxton

Phys. Rev. C 23, 1293(R) – Published 1 March 1981

Abstract

Angular distributions for near threshold electroproduction of positive pions from ${}^{12}C$ are reported and compared to theory. These data provide tests of recently developed second-order optical potentials and of the nuclear response to electroproduction in the giant resonance region.

NUCLEAR REACTIONS ${}^{12}C (e, π^{+} e^{'})$ ; measured $σ (E_{π}, θ)$ , $E_{e} = 200$ MeV, $E_{π} = 6 - 13$ MeV; calculated $σ$ distorted wave Born approximation; giant resonances.

Received 4 December 1979

DOI:https://doi.org/10.1103/PhysRevC.23.1293

Authors & Affiliations

R. M. Sealock and H. S. Caplan

Saskatchewan Accelerator Laboratory, University of Saskatchewan, Saskatoon, Canada S7N 0W0

G. J. Lolos^*

Department of Physics, University of Regina, Regina, Canada S4S 0A2

W. C. Haxton^†

Theoretical Division, Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87545

^*Present address: Physics Department, University of British Columbia, Vancouver, B. C., Canada V6T 1W5.
^†Present address: Dept. of Physics, Purdue Univ., West Lafayette, Ind. 47907.

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Vol. 23, Iss. 3 — March 1981

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