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Updated: Jun 8, 2026

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Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Probing quark-gluon interactions with transverse polarized scattering
K Slifer1, O A Rondón, A Aghalaryan
1University of Virginia, Charlottesville, Virginia 22903, USA.
Physical Review Letters
|September 28, 2010
Abstract:
We have extracted QCD matrix elements from our data on doubly polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element d˜2, which arises strictly from quark-gluon interactions, to be unambiguously nonzero. 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.

