Semi-inclusive structure functions in the spectator model

Details Semi-inclusive structure functions in the spectator model Semi-inclusive structure functions in the spectator model

2000-03-24

arxiv.org/abs/hep-ph/0003243v1

Eur.Phys.J. A9 (2000) 131-142

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 16 figures, submitted to Eur. Phys. J. C

Scientific paper

10.1007/s100500070063

We establish the relationship between distribution and fragmentation functions and the structure functions appearing in the cross section of polarized 1-particle inclusive deep-inelastic scattering. We present spectator model evaluations of these structure functions focusing on the case of an outgoing spin-1/2 baryon. Distribution functions obtained in the spectator model are known to fairly agree at low energy scales with global parameterizations extracted, for instance, from totally inclusive DIS data. Therefore, we expect it to give good hints on the functional dependence of the structure functions on the scaling variables x(Bjorken), z and on the transverse momentum of the observed outgoing hadron, P_{h\perp}. Presently, this dependence is not very well known, but experiments are planned in the near future.

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