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Effect of Scheme Transformations on a Beta Function with Vanishing One-Loop Term

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 Added by Robert Shrock
 Publication date 2020
  fields
and research's language is English




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It is commonly stated that because terms in the beta function of a theory at the level of $ell ge 3$ loops and higher are scheme-dependent, it is possible to define scheme transformations that can be used to remove these terms, at least in the vicinity of zero coupling. We prove that this is not, in general, possible in the situation where a beta function is not identically zero but has a vanishing one-loop term.



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