EPJ Web of Conferences
Volume 172, 2018XLVII International Symposium on Multiparticle Dynamics (ISMD 2017)
|Number of page(s)||10|
|Section||Proton structure small and large-x physics|
|Published online||26 January 2018|
Small x Asymptotics of the Quark and Gluon Helicity Distributions
Department of Physics, The Ohio State University, Columbus, OH 43210, USA
2 Division of Science, Penn State University-Berks, Reading, PA 19610, USA
3 Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
Published online: 26 January 2018
We determine the small-x asymptotics of the gluon helicity distribution in a proton at leading order in perturbative QCD at large Nc. To achieve this, we begin by evaluating the dipole gluon helicity TMD at small x. We then construct and solve novel small-x large-Nc evolution equations for the operator related to the dipole gluon helicity TMD. Our main result is the small-x asymptotics for the quark helicity distribution
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.