Abstract

An ongoing program of evaluating TMD observables within Lattice QCD is reviewed, summarizing recent progress with respect to several challenges faced by such calculations. These lattice calculations are based on a definition of TMDs through hadronic matrix elements of quark bilocal operators containing staple-shaped gauge connections. A parametrization of the matrix elements in terms of invariant amplitudes serves to cast them in the Lorentz frame preferred for a lattice calculation. Data on the naively T-odd Sivers and Boer-Mulders effects as well as the transversity TMD are presented.

Details

Title
Lattice QCD calculations of transverse momentum-dependent parton distributions (TMDs)
Author
Engelhardt, M; Musch, B; Bhattacharya, T; Green, J R; Gupta, R; Hägler, P; Krieg, S; Negele, J; Pochinsky, A; Schäfer, A; Syritsyn, S; Yoon, B
Section
Spin and 3D Structure
Publication year
2016
Publication date
2016
Publisher
EDP Sciences
ISSN
21016275
e-ISSN
2100014X
Source type
Conference Paper
Language of publication
English
ProQuest document ID
1786253927
Copyright
© 2016. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.