dc.contributor.author Stevenson, P.M. 2017-05-19T20:48:12Z 2017-05-19T20:48:12Z 2016 Stevenson, P.M.. "The effective exponent γ(Q) and the slope of the β function." Physics Letters B, 761, (2016) Elsevier: 428-430. https://doi.org/10.1016/j.physletb.2016.08.061. https://hdl.handle.net/1911/94305 The slope of the β function at a fixed point is commonly thought to be RG invariant and to be the critical exponent γ* that governs the approach of any physical quantity RR to its fixed-point limit: R*−R∝Qγ*. Chýla has shown that this is not quite true. Here we define a proper RG invariant, the “effective exponent” γ(Q), whose fixed-point limit is the true γ*. eng Elsevier This is an open access article under the CC BY license https://creativecommons.org/licenses/by/4.0/ The effective exponent γ(Q) and the slope of the β function Journal article Physics Letters B T.W. Bonner Laboratory 761 Text https://doi.org/10.1016/j.physletb.2016.08.061 publisher version 428 430
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