Relativistic predictions of spin observables for exclusive proton knockout reactions

G. C. Hillhouse, J. Mano, S. M. Wyngaardt, B. I.S. Van der Ventel, T. Noro, K. Hatanaka

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Abstract

We demonstrate the ability of complete sets of exclusive (p ,2p) polarization transfer observables to discriminate between different model ingredients of the relativistic distorted wave impulse approximation (DWIA). Spin observables are identified, which are sensitive to Dirac versus Schrödinger dynamical equations of motion, different distorting optical potentials, finite-range versus zero-range approximations to the DWIA, as well as medium-modified meson-nucleon coupling constants and meson masses. In particular, we consider the knockout of protons from the 3s1/2, 2d3/2, and 2d5/2 states in 208Pb, at an incident laboratory kinetic energy of 202 MeV, and for coincident coplanar scattering angles (28.0°, -54.6°). The reaction kinematics are chosen so as to maximize the influence of distortion effects, while still maintaining the validity of the impulse approximation, and also avoiding complications associated with the inclusion of recoil corrections in the relativistic Dirac equation.

Original languageEnglish
Article number034608
Pages (from-to)346081-3460811
Number of pages3114731
JournalPhysical Review C - Nuclear Physics
Volume68
Issue number3
Publication statusPublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Hillhouse, G. C., Mano, J., Wyngaardt, S. M., Van der Ventel, B. I. S., Noro, T., & Hatanaka, K. (2003). Relativistic predictions of spin observables for exclusive proton knockout reactions. Physical Review C - Nuclear Physics, 68(3), 346081-3460811. [034608].