Quasifree Proton-Proton and Proton-Deuteron Scattering on He 3
1972; American Institute of Physics; Volume: 6; Issue: 6 Linguagem: Inglês
10.1103/physrevc.6.2023
ISSN1538-4497
Autores Tópico(s)Solar and Space Plasma Dynamics
ResumoQuasifree proton scattering from $^{3}\mathrm{He}$ is examined on the basis of available data. Cross sections are given in the pole-dominance approximation for either two protons or a proton and deuteron detected in coincidence. The cross sections are evaluated for a constant $^{3}\mathrm{He}$ vertex and a separable-potential model of the $^{3}\mathrm{He}$ vertex amplitude. Both two- and three-body breakup of $^{3}\mathrm{He}$ are considered, with final-state rescattering included between the spectator nucleons in three-body breakup. It is shown that the asymptotic form of the coordinate-space $^{3}\mathrm{He}$ wave function governs the shape of these low-momentum-transfer cross sections and that final-state rescattering between the spectator pair in $^{3}\mathrm{He}(p,2p)\mathrm{pn}$ mainly affects the magnitude of this cross section.
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