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

Authors :
Alexandrou, Constantia
Constantinou, Martha
Hadjiyiannakou, Kyriakos
Kallidonis, Christos
Koutsou, Giannis
Jansen, K.
Ottnad, K.
Vaquero, A.
Alexandrou, Constantia [0000-0001-9136-3621]
Kallidonis, Christos [0000-0002-7734-0789]
Source :
Proceedings of Science, 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016
Publication Year :
2016
Publisher :
Proceedings of Science (PoS), 2016.

Abstract

We present results for the nucleon electromagnetic and axial form factors using an Nf=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. © Copyright owned by the author(s). Part F128557 Sponsors: Conference code: 128557

Details

Database :
OpenAIRE
Journal :
Proceedings of Science, 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016
Accession number :
edsair.od......4485..a982edca268fc98f332ab47adb2f4f7a