Threshold production of the $Θ^+$ in a polarized proton reaction

Details Threshold production of the $Θ^+$ in a polarized proton reaction Threshold production of the $Θ^+$ in a polarized proton reaction

2004-01-12

arxiv.org/abs/hep-ph/0401074v2

Phys.Lett. B602 (2004) 180-184

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 7 figures

Scientific paper

10.1016/j.physletb.2004.09.035

We compute cross sections of $\Theta^+$ production near threshold for a polarized proton reaction, $\vec p \vec p \to \Sigma^+ \Theta^+$ which was recently proposed to determine unambiguously the parity of $\Theta^+$. Within theoretical uncertainties cross sections for the allowed spin configuration are estimated; it is of order of one microbarn for the positive parity $\Theta^+$ and about 1/10 microbarn for the negative parity $\Theta^+$ in the threshold energy region where the s-wave component dominates.

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