The reaction NN NN ϕnear threshold
A. I. Titov, B. Kämpfer, V. V. Shklyar
Abstract
The sensitivity of polarization observables in the reaction NN NN ϕ slightly above the threshold is studied with respect to the details of the one-boson exchange model and a possible admixture of hidden strangeness in the nucleon. It is shown that the finite-energy predictions differ strongly from the threshold predictions. A measurement of the beam - target asymmetry and the ϕ decay anisotropy can help to disentangle the role of various reaction mechanisms.
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