Journal
NUCLEAR PHYSICS B
Volume 673, Issue 1-2, Pages 357-384Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysb.2003.09.007
Keywords
semi-inclusive DIS; perturbative QCD; fracture functions
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We compute the order alpha(s)(2) quark initiated corrections to semi-inclusive deep inelastic scattering extending the approach developed recently for the gluon contributions. With these corrections we complete the order alpha(s)(2) QCD description of these processes, verifying explicitly the factorization of collinear singularities. We also obtain the corresponding NLO evolution kernels, relevant for the scale dependence of fracture functions. We compare the non-homogeneous evolution effects driven by these kernels with those obtained at leading order accuracy and discuss their phenomenological implications. (C) 2003 Elsevier B.V. All rights reserved.
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