Nucleon generalized form factors and sigma term from lattice QCD near the physical quark mass

A. Sch\"afer; A. Sternbeck; B. Gl\"a{\ss}le; G.S. Bali; J. Najjar; M. G\"ockeler; P. Wein; R. R\"odl; R. Schiel; S. Collins

arxiv: 1312.0828 · v1 · pith:OOXWZYHAnew · submitted 2013-12-03 · ✦ hep-lat

Nucleon generalized form factors and sigma term from lattice QCD near the physical quark mass

G.S. Bali , S. Collins , B. Gl\"a{\ss}le , M. G\"ockeler , J. Najjar , R. R\"odl , A. Sch\"afer , R. Schiel

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W. S\"oldner A. Sternbeck P. Wein

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classification ✦ hep-lat

keywords massnucleonfactorsformgeneralizedlatticepionsigma

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We present new N_f=2 data for the nucleon generalized form factors, varying volume, lattice spacing and pion mass, down to 150 MeV. We also give an update of our direct calculation of the nucleon sigma term for a range of pion mass values including the lightest one.

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Nucleon generalized form factors and sigma term from lattice QCD near the physical quark mass

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