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The SUSY-QCD β function to three loops
DOI:10.1140/epjc/s10052-009-1109-9.png)
摘要
En 中文
A number of (DR) over bar 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 epsilon-scalars, 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 et al. (Phys. Lett. B 386: 138, 1996, hep-ph/9606323) (see also Pickering et al. in Phys. Lett. B 510, 347, 2001, hep-ph/0104247). This explicitly demonstrates the consistency of DRED with SUSY and gauge invariance, an important pre-requisite for precision calculations in supersymmetric theories.
Keyword:
ANOMALOUS DIMENSION
N=1 SUPERSYMMETRY
SYMMETRY-BREAKING
FEYNMAN-RULES
QUARK MASS
ELECTROWEAK
期刊
IF:
4.8
论文数:
1.8W
被引数:
4.7W
机构
引用论文
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PLOS ONE
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