Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Roll of the pion sea of the nucleon in production of mesons with hidden flavor (phi, J/psi, UPSILON)

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:5238452
The contribution of the pion-exchange mechanism to the hadroproduction of mesons with hidden flavor (phi, J/psi, psi', UPSILON) is discussed. The differential cross sections for production of these mesons in ..pi..N collisions are parametrized. The parton interpretation of the model and in particular the parton composition of the pion cloud of the nucleon are discussed. The question of production of mesons with hidden flavor in association with particles carrying explicit flavor, and the related question of overlap of pion-exchange diagrams with each other, are discussed. The results of calculations of the cross sections for production of phi, J/psi, psi', and UPSILON mesons in nucleon-nucleon collisions are given, and a method is proposed for separation of the contributions of the mechanisms of quark-antiquark annihilation and gluon-gluon fusion in these processes.
Research Organization:
Institute of Theoretical and Experimental Physics, State Commission on Use of Atomic Energy
OSTI ID:
5238452
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 41:4; ISSN SJNCA
Country of Publication:
United States
Language:
English