Parity Violation in Proton-Proton Scattering at 221 MeV
Nuclear Experiment
2009-11-07 v2 High Energy Physics - Phenomenology
Abstract
The parity-violating longitudinal analyzing power, Az, has been measured in pp elastic scattering at an incident proton energy of 221 MeV. The result obtained is Az =(0.84 +/- 0.29 (stat.) +/- 0.17 (syst.)) x 10^{-7}. This experiment is unique in that it selects a single parity violating transition amplitude, 3P2-1D2, and consequently directly constrains the weak meson-nucleon coupling constant h^pp_rho When this result is taken together with the existing pp parity violation data, the weak meson-nucleon coupling constants h^pp_rho and h^pp_omega can, for the first time, both be determined.
Keywords
Cite
@article{arxiv.nucl-ex/0107014,
title = {Parity Violation in Proton-Proton Scattering at 221 MeV},
author = {A. R. Berdoz and TRIUMF E497 Collaboration},
journal= {arXiv preprint arXiv:nucl-ex/0107014},
year = {2009}
}
Comments
8 pages RevTeX4, 3 PostScript figures. Conclusion revised. New information about weak coupling constants added