Spin correlations in the reaction "pi \vec D --> \vecΣΘ^+" and the parity of Theta^+

Abstract

We analyze two types of spin observables in the reaction $π\vec D\to\vecΣΘ^+$ near the threshold. One concerns the spin-transfer coefficients $K_x^x$ and $K_z^z$. The second one is the deuteron spin anisotropy. These observables are sensitive to the $Θ^+$ parity and can be used as a tool for the $Θ^+$ parity determination.

4 pages, 5 figures