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Scalar meson production in nucleon-nucleon collisions near threshold

Michail P. Rekalo·Egle Tomasi-Gustafsson
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Abstract

We establish the model-independent spin structure of the matrix elements for the near-threshold scalar meson production in $pp-$ and $np$-collisions, when the final particles are emitted in S-state. Polarization phenomena are derived in a general form. The properties of the $t-$channel dynamics, which is based on different meson exchanges, are studied in terms of the $s-$channel parametrization of the matrix element. The prediction of a 'realistic' model, based on $π+σ$-exchanges are also presented.

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Michail P. Rekalo, Egle Tomasi-Gustafsson. 2002-09-17. Scalar meson production in nucleon-nucleon collisions near threshold. https://doi.org/10.1140/epja%2Fi2003-10060-0

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