$a$-theorem at large $N_f$
High Energy Physics - Theory
2019-01-16 v2 High Energy Physics - Lattice
High Energy Physics - Phenomenology
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.
Cite
@article{arxiv.1808.00482,
title = {$a$-theorem at large $N_f$},
author = {Oleg Antipin and Nicola Andrea Dondi and Francesco Sannino and Anders Eller Thomsen},
journal= {arXiv preprint arXiv:1808.00482},
year = {2019}
}
Comments
5 pages, 2 figures - references updated, typos corrected