Picture of QCD Jets: Leading Log Approximation and Beyond It
We review the picture of QCD jets as it emerged from the analyses based on perturbative QCD in the leading log approximation (LLA) and beyond it. Part I (by K. Konishi) gives a brief review of the intuitive (fractal) picture and quantitative description of QCD jets in LLA, and contains discussions on some salient aspects of QCD corrections beyond the leading order. Part II (by J. Kalinowski) is a summary of the construction of the jet calculus beyond the leading order, and of calculations to next-to-leading order of jet calculus vertices and generalized Altarelli-Parisi parton decay functions.
KeywordsSingular Term Hard Process Mass Singularity Axial Gauge Gluon Form Factor
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