Parity violation in $pp$ scattering and vector-meson weak-coupling constants

Abstract

We calculate the parity-nonconserving longitudinal asymmetry in the elastic $\vec{p} p$ scattering at the energies where experimental data are available. In addition to the standard one-meson exchange weak potential, the variation of the strong-coupling constants and the non-standard effects such as form factors and $2 \pi$-exchange description of the $\rho$-exchange potential are taken into account. With the extra effects, we investigate the compatibility of the experimental data and the presently-known range of the vector-meson weak-coupling constants.Comment: Contribution to the proceedings of the 3rd Asia-Pacific conference on few-body problems in physics, Suranaree Univ. of Technology, Nakhon Ratchasima, Thailand, July 26 - 30, 200