Interference Fragmentation Functions in Deep Inelastic Scattering
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We give a general overview of the role and interpretation of fragmentation functions in hard processes. Transverse momentum dependence gives rise to time-reversal odd fragmentation functions contributing at leading order. Final state interactions are necessary to have non-zero time reversal odd functions. We present a model calculation for the special case of interference fragmentation functions in two-hadron inclusive lepton hadron scattering.
12 pages, Latex, uses ws-p8-50x6-00.cls (included), to be published in the Proceedings of 2nd Int. Conf. on "Perspectives in Hadronic Physics", 10-14 May 1999, Trieste, Italy
12 pages, Latex, uses ws-p8-50x6-00.cls (included), to be published in the Proceedings of 2nd Int. Conf. on "Perspectives in Hadronic Physics", 10-14 May 1999, Trieste, Italy