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Instantons and eta meson production near threshold in NN collisions

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	Kochelev, Nikolai; Vento Torres, Vicente; Vinnikov, Andrey V.
	This document is a artículoDate2000
	Este documento está disponible también en : http://hdl.handle.net/10550/43655
	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.
	Kochelev, Nikolai Vento Torres, Vicente Vinnikov, Andrey V. 2000 Instantons and eta meson production near threshold in NN collisions Physics Letters B 472 3-4 247 252
	http://dx.doi.org/10.1016/S0370-2693(99)01440-9