Exclusive pion production from few nucleon systems in the region of the Δ1232 resonance

K. M. Furutani, W. R. Falk, H. Guan, J. R. Campbell, F. A. Duncan, P. L. Walden, S. Yen, G. M. Huber, R. D. Bent, G. J. Lolos, E. Korkmaz, A. Trudel, and A. Celler
Phys. Rev. C 50, 1561 – Published 1 September 1994
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Abstract

Angular distributions of the differential cross sections and analyzing powers have been measured for the He3(p→,π+) He4 and He4(p→,π+)5He reactions at proton bombarding energies between 240 and 507 MeV. These new results provide a comprehensive set of data spanning the region of the Δ1232 resonance and are compared with a phenomenological model that incorporates the amplitudes for the ppdπ+ reaction, and with calculations from a microscopic (p,π+) model. A He5 final state interaction calculation based upon the low energy n+α elastic phase shifts indicates that the He4(p,π+)5He spectra are nearly independent of pion angle and proton energy. Comparisons made with the time reversed charge symmetric reaction H3(n,π)4He reaction indicate substantial Coulomb effects are still present at 300 MeV.

  • Received 10 May 1994

DOI:https://doi.org/10.1103/PhysRevC.50.1561

©1994 American Physical Society

Authors & Affiliations

K. M. Furutani, W. R. Falk, H. Guan, and J. R. Campbell

  • Department of Physics, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2

F. A. Duncan

  • Department of Physics, University of British Columbia, Vancouver, British Columbia, Canada V6T 2A6

P. L. Walden and S. Yen

  • TRIUMF, Vancouver, British Columbia, Canada V6T 2A3

G. M. Huber and R. D. Bent

  • Indiana University Cyclotron Facility, Bloomington, Indiana 47405

G. J. Lolos

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

E. Korkmaz

  • Department of Physics, University of Alberta, Edmonton, Alberta, Canada T6G 2N5

A. Trudel

  • Department of Physics, Simon Fraser University, Vancouver, British Columbia, Canada V6T 2A6

A. Celler

  • Department of Physics, University of Western Ontario, London, Ontario, Canada T6G 2N5

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Vol. 50, Iss. 3 — September 1994

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