scholarly journals Nucleon charges and quark momentum fraction with $N_f=2+1$ Wilson fermions

2019 ◽  
Author(s):  
Konstantin Ottnad ◽  
Tim Harris ◽  
Harvey Meyer ◽  
Georg von Hippel ◽  
Jonas Wilhelm ◽  
...  
Keyword(s):  
Momentum Fraction ◽  
Quark Momentum ◽  
Wilson Fermions

scholarly journals Nucleon average quark momentum fraction with Nf = 2+1 Wilson fermions

2018 ◽  
Vol 175 ◽  
pp. 06026 ◽  
Author(s):  
Konstantin Ottnad ◽  
Tim Harris ◽  
Harvey Meyer ◽  
Georg von Hippel ◽  
Jonas Wilhelm ◽  
...  
Keyword(s):  
Excited State ◽  
Lattice Spacing ◽  
Axial Vector ◽  
Momentum Fraction ◽  
Preliminary Results ◽  
Source Sink ◽  
Quark Momentum ◽  
Wilson Fermions

We report on an analysis of the average quark momentum fraction of the nucleon and related quantities using Nf = 2 + 1 Wilson fermions. Computations are performed on four CLS ensembles covering three values of the lattice spacing at pion masses down to Mπ ≈ 200 MeV. Several source-sink separations (~ 1:0 fm to ~ 1:4 fm) are used to assess the excited-state contamination. To gain further insight, the generalized pencil-of-functions approach has been implemented to reduce the excited-state contamination in the relevant two-and three-point functions. Preliminary results are shown for the isovector nucleon charges from vector, axial vector and tensor derivative (twist-2) operators.

scholarly journals Strange quark momentum fraction from overlap fermion

2015 ◽  
Author(s):  
Mingyang Sun ◽  
Yi-bo Yang ◽  
Keh-Fei Liu ◽  
Ming Gong
Keyword(s):  
Strange Quark ◽  
Momentum Fraction ◽  
Quark Momentum

scholarly journals A high-statistics study of the nucleon EM form factors, axial charge and quark momentum fraction

2014 ◽  
Author(s):  
Thomas Rae ◽  
Benjamin Jaeger ◽  
Stefano Capitani ◽  
Michele Della Morte ◽  
Dalibor Djukanovic ◽  
...  
Keyword(s):  
Form Factors ◽  
Momentum Fraction ◽  
Axial Charge ◽  
Quark Momentum

scholarly journals SU(3) breaking and the pseudo-scalar spectrum in multi-taste QCD

2018 ◽  
Vol 175 ◽  
pp. 04001
Author(s):  
Michael Creutz
Keyword(s):  
Sigma Model ◽  
Physical Spectrum ◽  
Pseudo Scalar ◽  
Wilson Fermions

Using the Sigma model to explore the lowest order pseudo-scalar spectrum with SU(3) breaking, this talk considers an additional exact “taste” symmetry to mimic species doubling. Rooting replicas of a valid approach such as Wilson fermions reproduces the desired physical spectrum. In contrast, extra symmetries of the rooted staggered approach leave spurious states and a flavor dependent taste multiplicity.

scholarly journals Lattice Simulations of 2-Colour QCD with Wilson Fermions

2004 ◽  
Vol 153 ◽  
pp. 60-68 ◽  
Author(s):  
Jon-Ivar Skullerud ◽  
Shinji Ejiri ◽  
Simon Hands ◽  
Luigi Scorzato
Keyword(s):  
Wilson Fermions

scholarly journals Bethe-Salpeter amplitudes and density correlations for mesons with Wilson fermions

1993 ◽  
Vol 48 (7) ◽  
pp. 3330-3339 ◽  
Author(s):  
Rajan Gupta ◽  
David Daniel ◽  
Jeffrey Grandy
Keyword(s):  
Density Correlations ◽  
Wilson Fermions

scholarly journals Heavy quark momentum diffusion coefficient from lattice QCD

2012 ◽  
Vol 85 (1) ◽  
Author(s):  
Debasish Banerjee ◽  
Saumen Datta ◽  
Rajiv Gavai ◽  
Pushan Majumdar
Keyword(s):  
Diffusion Coefficient ◽  
Lattice Qcd ◽  
Heavy Quark ◽  
Quark Momentum

scholarly journals Wilson Fermions and Axion Electrodynamics in Optical Lattices

2010 ◽  
Vol 105 (19) ◽  
Author(s):  
A. Bermudez ◽  
L. Mazza ◽  
M. Rizzi ◽  
N. Goldman ◽  
M. Lewenstein ◽  
...  
Keyword(s):  
Optical Lattices ◽  
Wilson Fermions
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