Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2010-11-04
Phys.Rev.D83:094507,2011
Physics
High Energy Physics
High Energy Physics - Lattice
36 pages, 24 figures
Scientific paper
10.1103/PhysRevD.83.094507
We discuss in detail a method to study transverse momentum dependent parton distribution functions (TMDs) using lattice QCD. To develop the formalism and to obtain first numerical results, we directly implement a bi-local quark-quark operator connected by a straight Wilson line, allowing us to study T-even, "process-independent" TMDs. Beyond results for x-integrated TMDs and quark densities, we present a study of correlations in x and transverse momentum. Our calculations are based on domain wall valence quark propagators by the LHP collaboration calculated on top of gauge configurations provided by MILC with 2+1 flavors of asqtad-improved staggered sea quarks.
Hagler Philipp
Musch Bernhard U.
Negele John W.
Sch{ä}fer Andreas
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