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arxiv: 1303.2129 · v1 · pith:ULQHXHTCnew · submitted 2013-03-08 · ✦ hep-ph · hep-ex

Evolution of the helicity and transversity Transverse-Momentum-Dependent parton distributions

Alessandro Bacchetta , Alexei Prokudin This is my paper
classification ✦ hep-ph hep-ex
keywords dependencedistributionsevolutionhelicitymomentumpartontransversetransversity
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We examine the QCD evolution of the helicity and transversity parton distribution functions when including also their dependence on transverse momentum. Using an appropriate definition of these polarized transverse momentum distributions (TMDs), we describe their dependence on the factorization scale and rapidity cutoff, which is essential for phenomenological applications.

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