Flavor content of the nucleon in an unquenched quark model

Journal Article · Mon Apr 20 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3131610· OSTI ID:21300520

Bijker, R ^[1]; Santopinto, E ^[2]

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1. ICN-UNAM, AP 70-543, 04510 Mexico DF (Mexico)
2. INFN, via Dodecaneso 33, 16164 Genova (Italy)

We discuss the flavor content of the nucleon in an unquenched quark model in which the effects of quark-antiquark pairs (uu-bar, dd-bar and ss-bar) are taken into account in an explicit form. It is shown that the inclusion of qq-bar pairs leads to an excess of d-bar over u-bar quarks in the proton and to a large contribution of orbital angular momentum to the spin of the proton.

• OSTI ID: 21300520
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1116; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONS
FLAVOR MODEL
HARMONIC OSCILLATORS
NUCLEON-NUCLEON INTERACTIONS
ORBITAL ANGULAR MOMENTUM
PARTICLE STRUCTURE
PROTONS
QUARK-ANTIQUARK INTERACTIONS
QUARKS
SPIN