A New Fracture Function Approach to QCD Initial State Radiation

Details A New Fracture Function Approach to QCD Initial State Radiation A New Fracture Function Approach to QCD Initial State Radiation

2007-05-16

arxiv.org/abs/0705.2326v1

Phys.Lett.B655:15-25,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 5 figures, revtex4

Scientific paper

10.1016/j.physletb.2007.07.074

Ordinary fracture functions, describing hadrons production in the deep inelastic scattering target fragmentation region, are generalized to account for the production of hadrons in arbitrary number, thus offering a renewed framework for dealing with QCD initial state radiation. We also propose a new jet-like observable which measures beam remnants and low-$p_{\perp}$ scattering fragments and derive its QCD evolution equations by using Jet Calculus. Possible implications for semi-inclusive deep inelastic scattering and hadron-hadron reactions are shortly discussed.

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