The g{sub 2} Structure Function

Journal Article · Mon Jul 27 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3203298· OSTI ID:21344405

Burkardt, Matthias ^[1]

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1. Department of Physics, New Mexico State University, Las Cruces, NM 88003 (United States) and Jefferson Lab, 12000 Jefferson Ave., Newport News, VA 23606 (United States)

Polarized structure functions at low Q{sup 2} have the physical interpretation of (generalized) spin polarizabilities. At high Q{sup 2}, the polarized parton distribution g{sub 2}(x) provides access to quark-gluon correlations in the nucleon. We discuss the interpretation of the x{sup 2} moment of g-bar{sub 2}(x) as an average transverse force on quarks in deep-inelastic scattering from a transversely polarized target. Qualitative connections with generalized parton distributions are emphasized. The x{sup 2} moment of the chirally-odd twist-3 parton distribution e(x) provides information on the dependence of the average transverse force on the transversity of the quark.

• OSTI ID: 21344405
• Journal Information: AIP Conference Proceedings, Vol. 1155, Issue 1; Conference: Workshop on spin structure at long distance, Newport News, VA (United States), 2-23 Mar 2009; Other Information: DOI: 10.1063/1.3203298; (c) 2009 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPTON EFFECT
CORRELATIONS
DEEP INELASTIC SCATTERING
FOUR MOMENTUM TRANSFER
GLUON-GLUON INTERACTIONS
GLUONS
NUCLEONS
PARTICLE STRUCTURE
POLARIZABILITY
POLARIZATION
POLARIZED TARGETS
QUARKS
SPIN
STRUCTURE FUNCTIONS
ANGULAR MOMENTUM
BARYONS
BASIC INTERACTIONS
BOSONS
ELASTIC SCATTERING
ELECTRICAL PROPERTIES
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MOMENTUM TRANSFER
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
SCATTERING
TARGETS