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Kochelev, Nikolai; Vento Torres, Vicente; Vinnikov, Andrey V. | |||
Aquest document és un/a article, creat/da en: 2000 | |||
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An enhancement for the η production in proton-neutron collisions as compared with that in proton-proton scattering has been recently observed. We present a calculation for the production cross section, in proton-neutron collisions near threshold, within instanton model for the QCD vacuum and show that a specific flavor dependent nonperturbative quark-gluon interaction related to instantons is able to explain the observed enhancement. | |||
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