Instantons and eta meson production near threshold in NN collisions

Authors
Kochelev, NI Vento, V Vinnikov, AV
Citation
Ni. Kochelev et al., Instantons and eta meson production near threshold in NN collisions, PHYS LETT B, 472(3-4), 2000, pp. 247-252
Citations number
36
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
472
Issue
3-4
Year of publication
2000
Pages
247 - 252
Database
ISI
SICI code
0370-2693(20000120)472:3-4<247:IAEMPN>2.0.ZU;2-E
Abstract
An enhancement for the eta production in proton-neutron collisions as compa red with that in proton-proton scattering has been recently observed, We pr esent a calculation for the production cross section, in proton-neutron col lisions near threshold, within instanton model for the QCD vacuum and show that a specific flavor dependent nonperturbative quark-gluon interaction re lated to instantons is able to explain the observed enhancement. (C) 2000 P ublished by Elsevier Science B.V. All rights reserved.