Two-hadron Inclusive DIS and Interference Fragmentation Functions

Abstract

We investigate the properties of interference fragmentation functions arising from the emission of two leading hadrons inside the same jet for semi-inclusive lepton-nucleon deep-inelastic scattering. Using an extended spectator model we give numerical estimates for the example of the fragmentation into a proton-pion pair with its invariant mass on the Roper resonance.

Comments: 10 pages, 12 figures in .eps format, epsfig and sprocl style files included, to appear in the Proceedings of the EPIC99 Workshop, April 8-11 1999, Bloomington (Indiana-USA)