On the reactions p + p -> p + Lambda + K^+ and p + p -> p + Sigma^0 + K^+ near thresholds
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
The cross sections for the reactions of the strange production p + p -> p + Lambda + K^+ and p + p -> p + Sigma^0 + K^+ near thresholds of the final states p Lambda K^+ and p Sigma^0 K^+ are calculated in the effective Lagrangian approach. Our approach is based on the dominant contribution of the one-pion exchange and strong interaction of the colliding protons in the initial state. The theoretical values of the cross sections agree reasonably well with the experimental data. The polarization properties of the Lambda and Sigma^0 hyperons are discussed.
Keywords
Cite
@article{arxiv.hep-ph/0011315,
title = {On the reactions p + p -> p + Lambda + K^+ and p + p -> p + Sigma^0 + K^+ near thresholds},
author = {A. Ya. Berdnikov and Ya. A. Berdnikov and A. N. Ivanov and V. F. Kosmach and M. D. Scadron and N. I. Troitskaya},
journal= {arXiv preprint arXiv:hep-ph/0011315},
year = {2009}
}
Comments
15 pages, 1 Postscript figure, Latex, to appear in Eur. Phys. JA