Nucleon generalized form factors with twisted mass fermions

C. Alexandrou; M. Constantinou; V. Drach; K. Jansen; Ch. Kallidonis; G. Koutsou

Nucleon generalized form factors with twisted mass fermions

High Energy Physics - Lattice 2013-12-11 v1 High Energy Physics - Phenomenology Nuclear Theory

Authors: C. Alexandrou , M. Constantinou , V. Drach , K. Jansen , Ch. Kallidonis , G. Koutsou

Abstract

We present results on the nucleon form factors, momentum fraction and helicity moment for $N_f=2$ and $N_f=2+1+1$ twisted mass fermions for a number of lattice volumes and lattice spacings. First results for a new $N_f=2$ ensemble at the physical pion mass are also included. The implications of these results on the spin content of the nucleon are discussed taking into account the disconnected contributions at one pion mass.

Keywords

nucleon form factor

Cite

@article{arxiv.1312.2874,
  title  = {Nucleon generalized form factors with twisted mass fermions},
  author = {C. Alexandrou and M. Constantinou and V. Drach and K. Jansen and Ch. Kallidonis and G. Koutsou},
  journal= {arXiv preprint arXiv:1312.2874},
  year   = {2013}
}

Comments

Talk presented at the 31st International Symposium on Lattice Field Theory - LATTICE 2013, July 29 - August 3, 2013, Mainz, Germany 7 pages and 7 figures

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