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Fracture functions from cut vertices

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arxiv hep-ph/9709452 v1 pith:FSADPZJ3 submitted 1997-09-25 hep-ph

Fracture functions from cut vertices

classification hep-ph
keywords fracturefunctionsequationextendedbecomesconceptdeepdescription
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Using a generalized cut vertex expansion we introduce the concept of an extended fracture function for the description of semi-inclusive deep inelastic processes in the target fragmentation region. Extended fracture functions are shown to obey a standard homogeneous DGLAP-type equation which, upon integration over t, becomes the usual inhomogeneous evolution equation for ordinary fracture functions.

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