Journal Article/Contribution to a conference proceedings

FZJ-2016-06012

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Lattice QCD calculations of nucleon transverse momentum-dependent parton distributions using clover and domain wall fermions

Engelhardt, M. (Corresponding author) ; Musch, B. ; Bhattacharya, T. ; Gupta, R. ; Haegler, P. ; Krieg, S.FZJ* ; Negele, J. ; Pochinsky, A. ; Syritsyn, S. ; Yoon, B.

2016
SISSA Trieste

Please use a persistent id in citations: http://hdl.handle.net/2128/12789

Abstract: An exploration of nucleon TMD observables at a substantially lower pion mass, 170 MeV, than used in previous lattice TMD calculations is presented. On a corresponding RBC/UKQCD domain wall fermion ensemble, TMDs are extracted from nucleon matrix elements of a bilocal quark operator containing a staple-shaped gauge link. Appropria te TMD ratios are constructed to cancel divergences associated with the gauge link. In particular, results associated with the time-reversal odd Sivers effect and with the quark transversity are report ed. They are compared with previous domain wall fermion calculations at 297 MeV pion mass with a v iew to exploring whether these observables vary strongly as a function of pion mass in the chiral regime.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)

Appears in the scientific report 2016

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