6533b822fe1ef96bd127cc8a
RESEARCH PRODUCT
Lattice QCD calculations of transverse momentum-dependent parton distributions (TMDs)
Michael EngelhardtAndreas SchäferRajan GuptaSergey SyritsynJeremy GreenB. MuschPh. HäglerBoram YoonAndrew PochinskyJohn W. NegeleStefan KriegStefan KriegTanmoy Bhattacharyasubject
QuarkPhysicsParticle physics010308 nuclear & particles physicsPhysicsQC1-999High Energy Physics::LatticeLorentz transformationHadronPartonObservableLattice QCD01 natural sciencesNuclear physicssymbols.namesakeAmplitudeLattice (order)0103 physical sciencessymbolsddc:530010306 general physicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-01 |