Institute for Theoretical Particle Physics (TTP)


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preprints:2009:ttp09-13 [2016/03/17 11:03] (current)
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 +====== TTP09-13 The SUSY-QCD beta-function to three loops ====== 
 +      <hidden TTP09-13  The SUSY-QCD beta-function to three loops > A number of $\drbar$ renormalization constants in softly broken 
 + \susy{}-\qcd{} are evaluated to three-loop level: the wave function 
 + renormalization constants for quarks, squarks, gluons, gluinos, ghosts, 
 + and \epscalar{}s, and the renormalization constants for the quark and 
 +   gluino mass as well as for all cubic vertices. The latter allow us to 
 + derive the corresponding $\beta$ functions through three loops, all of 
 + which we find to be identical to the expression for the gauge $\beta$ 
 + function obtained by Jack, Jones, and North~\cite{Jack:1996vg} (see also 
 + Ref.\,\cite{Pickering:2001aq}). This explicitely demonstrates the 
 + consistency of \dred{} with \susy{} and gauge invariance, an important 
 + pre-requisite for precision calculations in supersymmetric theories. 
 + </hidden> 
 +|**Robert Harlander, Luminita Mihaila, Matthias Steinhauser**  |  
 +|**  Eur.Phys.J.  C63 383-390 2009  **  | 
 +| {{preprints:2009:ttp09-13.pdf|PDF}} {{|PostScript}} [[|arXiv]] [[|Programs and Data]]   | 
 +| |