Nucleon electromagnetic and axial form factors with N$_f$=2 twisted mass fermions at the physical point

Alejandro Vaquero; Christos Kallidonis; Constantia Alexandrou; Giannis Koutsou; Karl Jansen; Konstantin Ottnad; Kyriakos Hadjiyiannakou; Martha Constantinou

arxiv: 1702.00984 · v1 · pith:HJKTDATTnew · submitted 2017-02-03 · ✦ hep-lat

Nucleon electromagnetic and axial form factors with N_f=2 twisted mass fermions at the physical point

Constantia Alexandrou , Martha Constantinou , Kyriakos Hadjiyiannakou , Karl Jansen , Christos Kallidonis , Giannis Koutsou , Konstantin Ottnad , Alejandro Vaquero This is my paper

classification ✦ hep-lat

keywords factorsformmassnucleonaxialelectromagneticmagnetictwisted

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We present results for the nucleon electromagnetic and axial form factors using an N$_f$=2 twisted mass fermion ensemble with pion mass of about 131 MeV. We use multiple sink-source separations to identify excited state contamination. Dipole masses for the momentum dependence of the form factors are extracted and compared to experiment, as is the nucleon magnetic moment and charge and magnetic radii.

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Nucleon electromagnetic and axial form factors with N_f=2 twisted mass fermions at the physical point

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