Probing Quark-Gluon Interactions with Transverse Polarized Scattering - INSPIRE

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Probing Quark-Gluon Interactions with Transverse Polarized Scattering

Resonance Spin Structure

Collaboration

•

K. Slifer
(
- Virginia U. and
- New Hampshire U.
)

Dec, 2008

5 pages

Published in:

Phys.Rev.Lett. 105 (2010) 101601

e-Print:

0812.0031 [nucl-ex]

DOI:

10.1103/PhysRevLett.105.101601

Report number:

JLAB-PHY-08-893

View in:

reference search53 citations

Citations per year

Abstract: (arXiv)

We have extracted QCD matrix elements from our data on double polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element \tilde{d_2}, which arises strictly from quark- gluon interactions, to be unambiguously non zero. The data also reveal an isospin dependence of higher twist effects if we assume that the Burkhardt-Cottingham Sum rule is valid. The fundamental Bjorken sum rule obtained from the a0 matrix element is satisfied at our low momentum transfer.

Note:

formerly "Nachtmann Moments of the Proton and Deuteron Spin Structure Functions"

11.55.Hx
25.30.Bf
29.25.Pj
29.27.Hj
structure function: spin
nucleon: structure function
deuteron: structure function
higher-twist
structure function: moment
sum rule

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