Nucleon electromagnetic form factors in twisted mass lattice QCD
Ημερομηνία
2011Συγγραφέας
Alexandrou, ConstantiaBrinet, M.
Carbonell, J.
Constantinou, Martha
Harraud, P. A.
Guichon, P.
Jansen, K.
Korzec, T.
Papinutto, M.
ISSN
1550-7998Source
Physical Review D - Particles, Fields, Gravitation and CosmologyVolume
83Issue
9Google Scholar check
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
We present results on the nucleon electromagnetic form factors within lattice QCD using two flavors of degenerate twisted mass fermions. Volume effects are examined using simulations at two volumes of spatial length L=2.1fm and L=2.8fm. Cutoff effects are investigated using three different values of the lattice spacings, namely a=0.089fm, a=0.070fm and a=0.056fm. The nucleon magnetic moment, Dirac and Pauli radii are obtained in the continuum limit and chirally extrapolated to the physical pion mass allowing for a comparison with experiment. © 2011 American Physical Society.