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Polarization phenomena for heavy meson production in NN-collisions near threshold

Michail P. Rekalo·Egle Tomasi-Gustafsson
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Abstract

Polarization phenomena are essential for the understanding of elementary processes, and are typically large in the threshold region. The selection rules with respect to P-parity, angular momentum, isotopic spin and the Pauli principle allow to parametrize in a model independent way, the spin structure of the matrix elements for the near-threshold heavy meson production in NN-collisions in terms of a small number of partial amplitudes. Such parametrization is very powerful for the analysis of polarization phenomena and possible $t-$exchange mechanisms.

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Michail P. Rekalo, Egle Tomasi-Gustafsson. 2002-09-11. Polarization phenomena for heavy meson production in NN-collisions near threshold. https://arxiv.org/abs/nucl-th/0209031

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