We compute cross sections of Θ+ production near threshold for a polarized proton reaction, pp→Σ+Θ+ which was recently proposed to determine unambiguously the parity of Θ+. Within theoretical uncertainties cross sections for the allowed spin configuration are estimated; it is of order of one microbarn for the positive parity Θ+ and about 1/10 microbarn for the negative parity Θ+ in the threshold energy region where the s-wave component dominates.
@article{arxiv.hep-ph/0401074,
title = {Threshold production of the $\Theta^+$ in a polarized proton reaction},
author = {S. I. Nam and A. Hosaka and H. -Ch. Kim},
journal= {arXiv preprint arXiv:hep-ph/0401074},
year = {2009}
}