Nucleon electromagnetic form factors from twisted mass lattice QCD

Abdou Abdel-Rehim; Constantia Alexandrou; Martha Constantinou; Kyriakos Hadjiyiannakou; Karl Jansen; Giannis Koutsou

Nucleon electromagnetic form factors from twisted mass lattice QCD

High Energy Physics - Lattice 2015-01-08 v1

Authors: Abdou Abdel-Rehim , Constantia Alexandrou , Martha Constantinou , Kyriakos Hadjiyiannakou , Karl Jansen , Giannis Koutsou

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Abstract

Results on the electromagnetic form factors of the nucleon using twisted mass fermion configurations are presented. These include a gauge field ensemble simulated with two degenerate light quarks yielding a pion mass of around 130 MeV, as well as two ensembles that include strange and charm quarks in the sea yielding pion masses of 210 MeV and 373 MeV. Details of the methods used and systematic errors are discussed, such as noise reduction techniques and the effect of excited states contamination.

Keywords

lattice QCD twisted mass fermions nucleon electromagnetic form factors pion mass systematic errors noise reduction techniques

Cite

@article{arxiv.1501.01480,
  title  = {Nucleon electromagnetic form factors from twisted mass lattice QCD},
  author = {Abdou Abdel-Rehim and Constantia Alexandrou and Martha Constantinou and Kyriakos Hadjiyiannakou and Karl Jansen and Giannis Koutsou},
  journal= {arXiv preprint arXiv:1501.01480},
  year   = {2015}
}

Comments

Conference Proceedings, 7 pages, 8 figures. Talk presented at the 32nd International Symposium on Lattice Field Theory (LATTICE 2014), 23-28 June, 2014, Columbia University New York, NY

Nucleon electromagnetic form factors from twisted mass lattice QCD

Abstract

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