Inelastic scattering of <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>π</mi></mrow><mrow><mi mathvariant="normal">−</mi></mrow></msup></mrow></math> mesons from <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>3</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> and <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">He</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>4</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math> at energies of 350, 400, and 475 MeV

J. Boswell; G. S. Das; P. C. Gugelot; J. Källne; J. McCarthy; L. Orphanos; R. C. Minehart; C. Smith; R. R. Whitney; P. A. M. Gram

doi:10.1103/PhysRevC.32.1289

Inelastic scattering of $π^{+}$ and $π^{-}$ mesons from ${}^{3}{He}$ and ${}^{4}{He}$ at energies of 350, 400, and 475 MeV

J. Boswell, G. S. Das, P. C. Gugelot, J. Källne, J. McCarthy, L. Orphanos, R. C. Minehart, C. Smith, R. R. Whitney, and P. A. M. Gram

Phys. Rev. C 32, 1289 – Published 1 October 1985

Abstract

The momentum distributions of pions inelastically scattered from ${}^{3}{He}$ and ${}^{4}{He}$ were measured for incident energies of 350, 400, and 475 MeV. Pions were detected in a magnetic spectrometer at scattering angles of 60°, 90°, and 120°. The spectra show quasifree scattering from single nucleons along with a substantial component of lower momentum pions. The results are compared to a simple impulse approximation model, which accounts for the principal features of the data, but does not reproduce the low momentum tail even with the inclusion of multiple scattering.

Received 21 March 1985

DOI:https://doi.org/10.1103/PhysRevC.32.1289

Authors & Affiliations

J. Boswell, G. S. Das, P. C. Gugelot, J. Källne, J. McCarthy, L. Orphanos, R. C. Minehart, C. Smith, and R. R. Whitney

Institute for Nuclear and Particle Physics, University of Virginia, Charlottesville, Virginia 22901

P. A. M. Gram

Los Alamos National Laboratory, Los Alamos, New Mexico 87545

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Vol. 32, Iss. 4 — October 1985

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