Pion-induced nucleon knockout reactions on <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">O</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>16</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span> and <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">O</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>18</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math></span>

E. Piasetzky; A. Altman; J. Lichtenstadt; A. I. Yavin; D. Ashery; W. Bertl; L. Felawka; H. K. Walter; F. W. Schlepütz; R. J. Powers; R. G. Winter; J. v. d. Pluym

doi:10.1103/PhysRevC.26.2702

Rapid Communication

Pion-induced nucleon knockout reactions on ${}^{16}O$ and ${}^{18}O$

E. Piasetzky, A. Altman, J. Lichtenstadt, A. I. Yavin, D. Ashery, W. Bertl, L. Felawka, H. K. Walter, F. W. Schlepütz, R. J. Powers, R. G. Winter, and J. v. d. Pluym

Phys. Rev. C 26, 2702(R) – Published 1 December 1982

Abstract

The ( $π^{+}, π^{+} p$ ), ( $π^{-}, π^{-} p$ ), and ( $π^{-}, π^{-} n$ ) reactions on ${}^{16}O$ and ${}^{18}O$ were studied at 165 MeV by coincidence measurements of the outgoing particles. The cross sections for the ( $π^{-}, π^{-} n$ ) reaction is larger on ${}^{18}O$ than on ${}^{16}O$ , whereas those for the ( $π^{+}, π^{+} p$ ) and the ( $π^{-}, π^{-} p$ ) reactions are smaller, most likely because of the coupling between the absorption and the scattering channels.

NUCLEAR REACTIONS ( $π^{\pm}, π^{\pm} p$ ) ( $π^{-}, π^{-} n$ ) coin. Measurements on ${}^{16}O$ ${}^{18}O$ $E = 165$ MeV; deduced coupling between the absorption and the scattering channels.

Received 27 August 1982

DOI:https://doi.org/10.1103/PhysRevC.26.2702

Authors & Affiliations

E. Piasetzky^*, A. Altman, J. Lichtenstadt, and A. I. Yavin

Department of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel

D. Ashery^†

Argonne National Laboratory, Argonne, Illinois 60439

W. Bertl, L. Felawka, and H. K. Walter

Eidgenössische Technische Hochschule (LHE der ETH), Zürich, CH-5234 Villigen, Switzerland

F. W. Schlepütz^‡ and R. J. Powers^§

Physikinstitut der Universität Zürich, CH-8001 Zürich, Switzerland

R. G. Winter

Universität Zürich, CH-8001 Zürich, Switzerland and College of William & Mary, Williamsburg, Virginia 23185

J. v. d. Pluym

Natuurkundig Laboratorium, Vrije Universiteit, Amsterdam, The Netherlands

^*Present address: LAMPF, Los Alamos, N.M. 87545.
^†Permanent address: Tel Aviv University, Israel.
^‡Present address: Swiss Institute for Nuclear Research (SIN), CH-5234 Villigen, Switzerland.
^§Present address: Caltech, Pasadena, Calif. 91125.

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Vol. 26, Iss. 6 — December 1982

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