We discuss the conditions under which renormalization-group methods can imply Bjorken scaling for deep-inelastic structure functions. We prove and refine a conjecture of Parisi's concerning the high-spin behavior of anomalous dimensions in order to show that in most theories Bjorken scaling is possible only if the renormalization group has a fixed point at the origin of coupling-constant space.
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Callan et al. (1973) studied this question.
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