Applications of Symmetry Breaking in Determining PDFs of the Nucleon

Journal Article · Wed Dec 14 04:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3667309· OSTI ID:22004010

Fuguang, Cao ^[1]

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1. Institute of Fundamental Sciences, Massey University, Privative Bag 11 222, Palmerston North (New Zealand)

Studying the possible breaking of various parton model symmetries by the parton distribution functions of the nucleon can provide important information for the non-perturbative structure of hadrons and the strong interaction. We review theoretical calculations for the breaking of flavor symmetry, quark-antiquark symmetry and charge symmetry in the unpolarized and polarized nucleons using the meson cloud model. We report an estimation for the total distribution of strange and antistrange quarks in the nucleon by combining theoretical calculations of SU(3) flavor symmetry breaking with light antiquark distributions obtained from global analysis of available experimental data.

• OSTI ID: 22004010
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1418; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIQUARKS
DISTRIBUTION FUNCTIONS
FLAVOR MODEL
GLUON MODEL
GLUONS
MESONS
NUCLEONS
PARTICLE STRUCTURE
QUANTUM CHROMODYNAMICS
QUARK MODEL
QUARK-ANTIQUARK INTERACTIONS
STRONG INTERACTIONS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING