a-theorem at large N_f
classification
✦ hep-th
hep-lathep-ph
keywords
a-functionlargea-theoremchoicecouplingdemonstratingdeterminefermions
read the original abstract
We determine the Jack and Osborn a-function and related metric for gauge-fermion theories to leading order in the large number of fermions and to all orders in the gauge coupling, demonstrating that the strong a-theorem is violated for the minimal choice of the a-function.
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