Probing Quark-Gluon Interactions with Transverse Polarized Scattering
Nuclear Experiment
2014-11-18 v5
Abstract
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.
Cite
@article{arxiv.0812.0031,
title = {Probing Quark-Gluon Interactions with Transverse Polarized Scattering},
author = {K. Slifer and O. A. Rondon and A. Aghalaryan and A. Ahmidouch and R. Asaturyan and F. Bloch and W. Boeglin and P. Bosted and C. Carasco and R. Carlini and J. Cha and J. P. Chen and M. E. Christy and L. Cole and L. Coman and D. Crabb and S. Danagoulian and D. Day and J. Dunne and M. Elaasar and R. Ent and H. Fenker and E. Frlez and D. Gaskell and L. Gan and J. Gomez and B. Hu and J. Jourdan and M. K. Jones and C. Keith and C. E. Keppel and M. Khandaker and A. Klein and L. Kramer and Y. Liang and J. Lichtenstadt and R. Lindgren and D. Mack and P. McKee and D. McNulty and D. Meekins and H. Mkrtchyan and R. Nasseripour and I. Niculescu and K. Normand and B. Norum and D. Pocanic and Y. Prok and B. Raue and J. Reinhold and J. Roche and D. Kiselev and N. Savvinov and B. Sawatzky and M. Seely and I. Sick and C. Smith and G. Smith and S. Stepanyan and L. Tang and S. Tajima and G. Testa and W. Vulcan and K. Wang and G. Warren and F. R. Wesselmann and S. Wood and C. Yan and L. Yuan and J. Yun and M. Zeier and H. Zhu},
journal= {arXiv preprint arXiv:0812.0031},
year = {2014}
}
Comments
formerly "Nachtmann Moments of the Proton and Deuteron Spin Structure Functions"