Exploring quark transverse momentum distributions with lattice QCD

Author(s)
Musch, B. U.; Hagler, Ph.; Negele, John W.; Schafer, A.
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Abstract
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 bilocal 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 k⊥. Our calculations are based on domain wall valence quark propagators by the LHP Collaboration calculated on top of gauge configurations provided by the MILC Collaboration with Nf=2+1 asqtad-improved staggered sea quarks.
Date issued
2011-05
URI
http://hdl.handle.net/1721.1/67006
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Musch, B. et al. “Exploring quark transverse momentum distributions with lattice QCD.” Physical Review D 83 (2011). © 2011 American Physical Society.
Version: Final published version
ISSN
1550-7998
1550-235X
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