Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-12-30
Mod.Phys.Lett.A24:2960-2972,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 5 figures; Proceedings of the workshop, "Recent Advances in Perturbative QCD and Hadronic Physics" ECT*, Trento (Ita
Scientific paper
10.1142/S0217732309001170
In the factorized picture of semi-inclusive deep inelastic scattering the naive time reversal-odd parton distributions exist by virtue of the gauge link which is intrinsic to their definition. The link structure describes initial/final-state interactions of the active parton due to soft gluon exchanges with the target remnant. Though these interactions are non-perturbative, calculations of final-state interaction have been performed in a perturbative one-gluon approximation. We include higher-order contributions by applying non-perturbative eikonal methods to calculate the Boer-Mulders function of the pion. Using this framework we explore under what conditions the Boer-Mulders function can be described in terms of factorization of final state interactions and a spatial distortion.
Gamberg Leonard
Schlegel Marc
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