SCGT Forum - Nick Evans



Summary of work on SU(2) gauge theory with Nf=2 adjoint quarks.

The theory is predicted to be very slowly running at the two loop level with γ*=0.6. Several lattice studies place it in the conformal window instead.

Del Debbio et al used hyperscaling of masses to give γ*=0.22(6)

  • The infrared dynamics of Minimal Walking Technicolor , Luigi Del Debbio, Biagio Lucini, Agostino Patella, Claudio Pica, Antonio Rago (Apr, 2010) Published in: Phys.Rev.D 82 (2010) 014510, e-Print: 1004.3206 [hep-lat]

    Lopez et al used similar technology to give γ*=0.20(4)

  • Measurement of the mass anomalous dimension of near-conformal adjoint QCD with the gradient flow Camilo Lopez, Georg Bergner, Istvan Montvay, Stefano Piemonte (Nov 5, 2020), e-Print: 2011.02815 [hep-lat]

    However, Patella used scaling of the mode number of the chiral condensate and found γ*=0.37(2)

  • A precise determination of the psibar-psi anomalous dimension in conformal gauge theories Agostino Patella (Apr, 2012) Published in: Phys.Rev.D 86 (2012) 025006, e-Print: 1204.4432 [hep-lat]

    Here is a recent talk by Biagio Lucini (May 21, Southampton) on this theory:


    Holographic predictions of the spectrum, using the two loop running - read more here :