Nucleon electromagnetic form factors at high Q2 from Wilson-clover fermions

Christos Kallidonis, Sergey Syritsyn, Michael Engelhardt, Jeremy Green, Stefan Meinel, John Negele, Andrew Pochinsky

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


We present results on the nucleon electromagnetic form factors from Lattice QCD at momentum transfer up to about 12 GeV2. We analyze two gauge ensembles with the Wilson-clover fermion action, a lattice spacing of a≈0.09 fm and pion masses mπ ≈170 MeV and mπ ≈280 MeV. In our analysis we employ momentum smearing as well as a set of techniques to investigate excited state effects. Good agreement with experiment and phenomenology is found for the ratios GE/GM and F2/F1, whereas discrepancies are observed for the individual form factors F1 and F2. We discuss various systematics that may affect our calculation.

Original languageEnglish (US)
Article number125
JournalProceedings of Science
StatePublished - 2018
Event36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States
Duration: Jul 22 2018Jul 28 2018

ASJC Scopus subject areas

  • General


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