New measurements of polarized valence and sea quark distributions of the nucleon in semi-inclusive deep inelastic scattering

Journal Article · Fri May 29 00:00:00 EDT 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.56002· OSTI ID:21185714

Perdekamp, M Grosse ^[1]

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1. Yale University, New Haven, Connecticut 06520 (United States)

We have measured semi-inclusive spin asymmetries for positively and negatively charged hadrons from polarized protons and deuterons and we have determined the polarized quark distributions {delta}u{sub v}(x), {delta}d{sub v}(x) and {delta}q-bar(x) of the valence and the non-strange sea quarks. Our results for the first moments of the polarized valence quark distributions are in good agreement with results obtained from the axial matrix elements F and D. The second moments are consistent with lattice QCD predictions.

• OSTI ID: 21185714
• Journal Information: AIP Conference Proceedings, Vol. 432, Issue 1; Conference: 7. international conference on hadron spectroscopy, Upton, NY (United States), 25-30 Aug 1997; Other Information: DOI: 10.1063/1.56002; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
COMPARATIVE EVALUATIONS
DEEP INELASTIC SCATTERING
DEUTERONS
FORM FACTORS
LATTICE FIELD THEORY
MATRIX ELEMENTS
POLARIZATION
PROTONS
QUANTUM CHROMODYNAMICS
QUARKS
SEMI-INCLUSIVE INTERACTIONS
SPIN