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QCD spin physics: Partonic spin structure of the nucleon

By Daniel Enrique de Florian, Rodolfo Sassot, Marco Stratmann and W. Vogelsang

Abstract

We discuss some recent developments concerning the nucleon's helicity parton distribution functions: new preliminary data from jet production at RHIC suggest for the first time a non-vanishing polarization of gluons in the nucleon. SIDIS measurements at COMPASS provide better constraints on the strange and light sea quark helicity distributions. Single-longitudinal spin asymmetries in W-boson production have been observed at RHIC and will ultimately give new insights into the light quark and anti-quark helicity structure of the nucleon. © 2012 Elsevier B.V. All rights reserved.Fil: de Florian, Daniel Enrique. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Sassot, Rodolfo. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Stratmann, Marco. Brookhaven National Laboratory; Estados UnidosFil: Vogelsang, W.. Universitat Tubingen; Alemani

Topics: NUCLEON STRUCTURE, PARTONS, PERTURBATION THEORY, QCD, SPIN, Astronomía, Ciencias Físicas, CIENCIAS NATURALES Y EXACTAS
Publisher: 'Elsevier BV'
Year: 2012
DOI identifier: 10.1016/j.ppnp.2011.12.027
OAI identifier: oai:ri.conicet.gov.ar:11336/55649
Provided by: CONICET Digital
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