<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>(<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>,2p) reaction at 165 MeV

S. D. Hyman; D. J. Mack; H. Breuer; N. S. Chant; F. Khazaie; B. G. Ritchie; P. G. Roos; J. D. Silk; P.-A. Amaudruz; Th. S. Bauer; C. H. Q. Ingram; G. S. Kyle; D. Renker; R. A. Schumacher; U. Sennhauser; W. J. Burger

doi:10.1103/PhysRevC.41.R409

Rapid Communication

${}^{16}O$ ( $π^{+}$ ,2p) reaction at 165 MeV

S. D. Hyman, D. J. Mack, H. Breuer, N. S. Chant, F. Khazaie, B. G. Ritchie, P. G. Roos, J. D. Silk, P.-A. Amaudruz, Th. S. Bauer, C. H. Q. Ingram, G. S. Kyle, D. Renker, R. A. Schumacher, U. Sennhauser, and W. J. Burger

Phys. Rev. C 41, R409(R) – Published 1 February 1990

Abstract

New data for the ${}^{16}O$ ( $π^{+}$ ,2p) reaction at $T_{π}$ =165 MeV are presented. Significant differences with previously published data are discussed. It is found that below 20 MeV excitation approximately 14% of the total absorption cross section is due to a two-nucleon mechanism. Evidence for direct two-nucleon absorption at higher excitation energy is also presented. Including estimates for final state interactions, the present results suggest that about 50% of the abosrption cross section is due to two-nucleon processes.