We have analyzed in the leading-logarithm approximation a closed set of equations, the solution of which describes correctly the processes e⁺+e^-→anything, e+h→e+anything, and e⁺+e^-→h+anything. This approach allows us to justify clearly the application of the renormalization group and the so-called factorization property. Since the technique is basically a skeleton expansion, it should be useful to give a unified description of all jet processes.
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Kazama et al. (1978) studied this question.