The gluon structure of hadrons and nuclei from lattice QCD
Name
epjconf_lattice2018_01015.pdf
Description
Published version
Size
683.62 KB
Format
Unknown
Checksum (MD5)
76a329c84a2f9eadd3dd0f1bafe0b6de
Author(s)
Shanahan, Phiala E
Date Issued
2018
Journal
EPJ Web of Conferences
Publisher
EDP Sciences
Version
Final published version
Abstract
© The Authors, published by EDP Sciences, 2018. I discuss recent lattice QCD studies of the gluon structure of hadrons and light nuclei. After very briefly highlighting new determinations of the gluon contributions to the nucleon's momentum and spin, presented by several collaborations over the last year, I describe first calculations of gluon generalised form factors. The generalised transversity gluon distributions are of particular interest since they are purely gluonic; they do not mix with quark distributions at leading twist. In light nuclei they moreover provide a clean signature of non-nucleonic gluon degrees of freedom, and I present the first evidence for such effects, based on lattice QCD calculations. The planned Electron-Ion Collider, designed to access gluon structure quantities, will have the capability to test this prediction, and measure a range of gluon observables including generalised gluon distributions and transverse momentum dependent gluon distributions, within the next decade.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1051/EPJCONF/201817501015
