Nucleon Structure Functions from Operator Product Expansion on the Lattice
Deep-inelastic scattering, in the laboratory and on the lattice, is most instructive for understanding how the nucleon is built from quarks and gluons. The long-term goal is to compute the associated structure functions from first principles. So far this has been limited to model calculations. In this Letter we propose a new method to compute the structure functions directly from the virtual, all-encompassing Compton amplitude, utilizing the operator product expansion. This overcomes issues of renormalization and operator mixing, which so far have hindered lattice calculations of power corrections and higher moments.
Physical Review Letters
- Pub Date:
- June 2017
- Nuclear Experiment;
- High Energy Physics - Experiment
- Replaced with the published version. Added the journal reference and DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-17-002 (CMS Public Pages)