Drell-Yan process and the pion sea in the nucleon

Journal Article · Fri Feb 01 00:00:00 EST 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5371659

Arakelyan, G G; Boreskov, K G

A model in which the quark sea of the nucleon at large distances is due to peripheral fluctuations with pion emission is discussed. The results are expressed in terms of the probability w/sub pi/N/(x/sub ..pi../) of emission by the nucleon of a pion with a momentum fraction x/sub ..pi../ which is calculated in the model of pion exchange. The distributions of u-bar and d-bar quarks in the nucleon are calculated, and the results are in good agreement with the experimental data. The overlap factor is determined for various diagrams of pion exchange in terms of the quark distributions. The experimental data on production of lepton pairs in NN collisions are described using the data on pair production in ..pi..N collisions.

• Research Organization: Institute of Theoretical and Experimental Physics, State Atomic Energy Commission
• OSTI ID: 5371659
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 41:2
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
LEPTONS
PAIR PRODUCTION
NUCLEON-NUCLEON INTERACTIONS
NUCLEONS
QUARK MODEL
BOSON-EXCHANGE MODELS
PARTICLE STRUCTURE
PION-NUCLEON INTERACTIONS
PIONS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PERIPHERAL MODELS
PSEUDOSCALAR MESONS
645206* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions
Baryon No. = 1- (-1987)