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Bounds on transverse momentum dependent distribution and fragmentation functions

High Energy Physics - Phenomenology 2011-07-19 v2
Authors: A. Bacchetta , M. Boglione , A. Henneman , P. J. Mulders
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Abstract

We give bounds on the distribution and fragmentation functions that appear at leading order in deep inelastic 1-particle inclusive leptoproduction or in Drell-Yan processes. These bounds simply follow from positivity of the defining matrix elements and are an important guidance in estimating the magnitude of the azimuthal and spin asymmetries in these processes.

Keywords

drell-yan process semi-inclusive deep inelastic scattering parton distribution functions

Cite

@article{arxiv.hep-ph/9912490,
  title  = {Bounds on transverse momentum dependent distribution and fragmentation functions},
  author = {A. Bacchetta and M. Boglione and A. Henneman and P. J. Mulders},
  journal= {arXiv preprint arXiv:hep-ph/9912490},
  year   = {2011}
}

Comments

5 pages, Revtex, 3 Postscript figures, version with minor changes, to be published in Physical Review Letters

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