Fracture functions in the very forward limit

Abstract

This talk gives a brief discussion of extended fracture functions, which parametrise the non-perturbative physics in the target fragmentation region of semi-inclusive DIS. In the forward limit z -> 1, it can be seen that fracture functions can be identified with insertions of composite operators. This enables polarised fracture functions to be used to test a target-independence hypothesis of the ``proton spin effect''.

4 pages, 3 figures, LaTeX 2e; talk at QCD99 Montpellier

References in corpus (4)

• Proof of Factorization for Diffractive Hard Scattering
• Fracture functions from cut vertices
• Testing Target Independence of the `Proton Spin' Effect in Semi-Inclusive Deep Inelastic Scattering
• Cut Vertices and Semi-Inclusive Deep Inelastic Processes