Positivity Constraints on Spin Observables in Exclusive Pseudoscalar Meson Photoproduction
Nuclear Theory
2008-11-26 v2 High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
Positivity constraints have proved to be important for spin observables of exclusive reactions involving polarized initial and final particles. Attention is focused in this note on the photoproduction of pseudoscalar mesons from spin 1/2 baryons, more specifically gamma+ N -> K+ Lambda, gamma+ N -> K Sigma, for which new experimental data are becoming available.
Keywords
Cite
@article{arxiv.nucl-th/0606050,
title = {Positivity Constraints on Spin Observables in Exclusive Pseudoscalar Meson Photoproduction},
author = {Xavier Artru and Jean-Marc Richard and Jacques Soffer},
journal= {arXiv preprint arXiv:nucl-th/0606050},
year = {2008}
}
Comments
3 pages,RevTex, 1 figure, more details on the derivation, refs. added, to appear in Phys. Rev. C