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arXiv · 1811.03847

Indications for infrared conformal behaviour of SU(2) gauge theory with $N_f = 3/2$ flavours of adjoint fermions

Georg Bergner·Pietro Giudice·Istvan Montvay·Gernot Münster·Stefano Piemonte·Philipp Scior
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Abstract

{We present the results of a numerical investigation of SU(2) gauge theory with $N_f=3/2$ flavours of fermions, corresponding to 3 Majorana fermions, which transform in the adjoint representation of the gauge group. At two values of the gauge coupling, the masses of bound states are considered as a function of the PCAC quark mass. The scaling of bound states masses indicates an infrared conformal behaviour of the theory. We obtain estimates for the fixed-point value of the mass anomalous dimension $\gamma^*$ from the scaling of masses and from the scaling of the mode number of the Wilson-Dirac operator.

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Georg Bergner, Pietro Giudice, Istvan Montvay, Gernot Münster, Stefano Piemonte, Philipp Scior. 2018-11-09. Indications for infrared conformal behaviour of SU(2) gauge theory with $N_f = 3/2$ flavours of adjoint fermions. https://arxiv.org/abs/1811.03847

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