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Two-point correlators in non-conformal $mathcal{N}=2$ gauge theories

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 نشر من قبل Marco Bill\\'o
 تاريخ النشر 2019
  مجال البحث
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We study the two-point correlation functions of chiral/anti-chiral operators in $N=2$ supersymmetric Yang-Mills theories on $R^4$ with gauge group SU(N) and $N_f$ massless hypermultiplets in the fundamental representation. We compute them in perturbation theory, using dimensional regularization up to two loops, and show that field-theory observables built out of dimensionless ratios of two-point renormalized correlators on $R^4$ are in perfect agreement with the same quantities computed using localization on the four-sphere, even in the non-conformal case $N_f ot=2N$.



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