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The relation between TMDs and PDFs in the covariant parton model approach

Dec, 2010

8 pages

Published in:

Phys.Rev.D 83 (2011) 054025

e-Print:

1012.5296 [hep-ph]

DOI:

10.1103/PhysRevD.83.054025

Report number:

JLAB-THY-10-1176

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Abstract: (arXiv)

We derive relations between transverse momentum dependent distribution functions (TMDs) and the usual parton distribution functions (PDFs) in the 3D covariant parton model, which follow from Lorentz invariance and the assumption of a rotationally symmetric distribution of parton momenta in the nucleon rest frame. Using the known PDFs f_1(x) and g_1(x) as input we predict the x- and pT-dependence of all twist-2 T-even TMDs.

Note:

8 pages, 4 figures

13.88.+e
13.60.-r
13.85.Ni
13.85.Qk
parton: distribution function
invariance: Lorentz
covariance
transverse momentum dependence
x-dependence
polarization

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