Nucleon generalized form factors with twisted mass fermions
Abstract
We present results on the nucleon form factors, momentum fraction and helicity moment for Nf=2 and Nf=2+1+1 twisted mass fermions for a number of lattice volumes and lattice spacings. First results for a new Nf=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.
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