Abstract
Though supersymmetry corresponds to a self-consistent field-theoretical framework, one can arrive at its crucial elements by simply requiring a theory which is at most logarithmically divergent: Logarithmic divergences correspond to only a weak dependence on the ultraviolate cut-off ΛUV and can be consistently absorbed in tree-level quantities, and thus understood as simply scaling (or renormalization) of the theory. Unlike quadratic divergences - which imply strong dependence on the ultraviolate cut-off and therefore need to be fine-tuned away, logarithmic divergences do not destabilize the infrared theory but only point towards its cut-off scale.
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© 2001 Springer-Verlag Berlin Heidelberg
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(2001). Bottom-Up Construction. In: Supersymmetry: Structure and Phenomena. Lecture Notes in Physics, vol 68. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44642-7_3
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DOI: https://doi.org/10.1007/3-540-44642-7_3
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