Numerical determination of the $\Lambda$-parameter in SU(3) gauge theory   from the twisted gradient flow coupling
  We estimate the $\Lambda$-parameter in the $\overline{\mathrm{MS}}$ scheme for the SU(3) pure gauge theory with the twisted gradient flow method non-perturbatively. We obtain $\Lambda_{\overline{\mathrm{MS}}}/\sqrt{\sigma}=0.527(13)(10)$ and $r_{0}\Lambda_{\overline{\mathrm{MS}}}=0.605(15)(5)$ which are consistent with the known values.This demonstrates the validity of the present method. 
Ken-Ichi Ishikawa, Issaku Kanamori, Yuko Murakami, Ayaka Nakamura,   Masanori Okawa and Ryoichiro Ueno
hep-lat