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arXiv · 0705.2326

A New Fracture Function Approach to QCD Initial State Radiation

Federico A. Ceccopieri·Luca Trentadue
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Abstract

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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Federico A. Ceccopieri, Luca Trentadue. 2007-05-16. A New Fracture Function Approach to QCD Initial State Radiation. https://doi.org/10.1016/j.physletb.2007.07.074

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