Nucleon form factors with Nf=2 dynamical twisted mass fermions

C. Alexandrou; T. Korzec; G. Koutsou; R. Baron; P. Guichon; M. Brinet; J. Carbonell; P. -A. Harraud; K. Jansen

Nucleon form factors with Nf=2 dynamical twisted mass fermions

High Energy Physics - Lattice 2010-02-05 v2 High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory

Authors: C. Alexandrou , T. Korzec , G. Koutsou , R. Baron , P. Guichon , M. Brinet , J. Carbonell , P. -A. Harraud , K. Jansen

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Abstract

We present results on the electromagnetic and axial nucleon form factors using two degenerate flavors of twisted mass fermions on lattices of spatial size 2.1 fm and 2.7 fm and a lattice spacing of about 0.09 fm. We consider pion masses in the range of 260-470 MeV. We chirally extrapolate results on the nucleon axial ch arge, the isovector Dirac and Pauli root mean squared radii and magnetic moment to the physical point and co mpare to experiment.

Keywords

nucleon form factors twisted mass fermions lattice QCD axial charge electromagnetic form factors chiral extrapolation

Cite

@article{arxiv.0910.3309,
  title  = {Nucleon form factors with Nf=2 dynamical twisted mass fermions},
  author = {C. Alexandrou and T. Korzec and G. Koutsou and R. Baron and P. Guichon and M. Brinet and J. Carbonell and P. -A. Harraud and K. Jansen},
  journal= {arXiv preprint arXiv:0910.3309},
  year   = {2010}
}

Comments

Report no. added; typos corrected. ETM Collaboration, 7 pages, 10 figures, Talk given at the XXVII International Symposium on Lattice Field Theory - LAT2009, July 26-31 2009, Peking University, Beijing, China

Nucleon form factors with Nf=2 dynamical twisted mass fermions

Abstract

Keywords

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