Quark-hadron duality and truncated moments of nucleon structure functions

Details Quark-hadron duality and truncated moments of nucleon structure functions Quark-hadron duality and truncated moments of nucleon structure functions

2008-03-13

arxiv.org/abs/0803.2055v2

Phys.Rev.C78:025206,2008

Physics

Nuclear Physics

Nuclear Theory

21 pages, 7 figures, to appear in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.78.025206

We employ a novel new approach to study local quark-hadron duality using "truncated" moments, or integrals of structure functions over restricted regions of x, to determine the degree to which individual resonance regions are dominated by leading twist. Because truncated moments obey the same Q^2 evolution equations as the leading twist parton distributions, this approach makes possible for the first time a description of resonance region data and the phenomenon of quark-hadron duality directly from QCD.

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