English

The 3-Loop Non-Singlet Heavy Flavor Contributions to the Structure Function g_1(x,Q^2) at Large Momentum Transfer

High Energy Physics - Phenomenology 2015-06-17 v1 High Energy Physics - Experiment

Abstract

We calculate the massive flavor non-singlet Wilson coefficient for the heavy flavor contributions to the polarized structure function g1(x,Q2)g_1(x,Q^2) in the asymptotic region Q2m2Q^2 \gg m^2 to 3-loop order in Quantum Chromodynamics at general values of the Mellin variable NN and the momentum fraction xx, and derive heavy flavor corrections to the Bjorken sum-rule. Numerical results are presented for the charm quark contribution. Results on the structure function g2(x,Q2)g_2(x,Q^2) in the twist-2 approximation are also given.

Keywords

Cite

@article{arxiv.1504.08217,
  title  = {The 3-Loop Non-Singlet Heavy Flavor Contributions to the Structure Function g_1(x,Q^2) at Large Momentum Transfer},
  author = {A. Behring and J. Blümlein and A. De Freitas and A. von Manteuffel and C. Schneider},
  journal= {arXiv preprint arXiv:1504.08217},
  year   = {2015}
}

Comments

29 pages, 8 Figures