Nucleon g{sub 2} Structure Function and Quark-Gluon Correlations

Journal Article · Thu Dec 17 00:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3293880· OSTI ID:21325702

Meziani, Zein-Eddine ^[1]

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1. Department of Physics, Temple University, Philadelphia, PA 19122-6082 (United States)

We discuss two recently carried out experiments at Jefferson Lab that measured with precision the spin structure function of the nucleon g{sub 2}, aiming at the determination of the twist-3 matrix element known as d{sub 2} for both the proton and the neutron. This matrix element is related to the average Lorentz color force that a quark experiences just at the instant it is struck. It is also interpreted as a measurement of a linear combination of the electric and magnetic 'color polarizability' in the nucleon.

• OSTI ID: 21325702
• Journal Information: AIP Conference Proceedings, Vol. 1182, Issue 1; Conference: 10. conference on the intersections of particle and nuclear physics, San Diego, CA (United States), 26-31 May 2009; Other Information: DOI: 10.1063/1.3293880; (c) 2009 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
CEBAF ACCELERATOR
COLOR MODEL
CORRELATIONS
GLUONS
MATRIX ELEMENTS
NEUTRONS
POLARIZABILITY
PROTONS
QUANTUM CHROMODYNAMICS
QUARK-GLUON INTERACTIONS
QUARKS
SPIN
STRUCTURE FUNCTIONS