Speaker
Description
I will describe our new lattice action using Möbius Domain Wall Fermions (MDWFs). The gauge action is tree-level Symanzik-improved with a rectangle coefficient of $c_1=-1/12$ and bare coupling $\beta$. The four flavors of MDWF utilize a Dirac operator with 8 iterations of Stout link smearing with $\rho=1/8$, which is comparable to gradient-flow smearing radius of 1 in lattice units. A domain-wall height of $M_5=1.0$ is used for all $\beta$ and $L_5$ and the $b$ and $c$ Möbius parameters are tuned to keep $m_{\rm res} \lesssim1.5$ MeV on all ensembles. With a modest allocation on Perlmutter at NERSC, we have generated more than 30 ensembles spanning $135\lesssim m_\pi\lesssim460$ MeV and $0.05\lesssim a\lesssim0.12$ fm. Details of the HMC integrator, topological charge, gradient flow scales, autocorrelation times and other details will be provided. The configurations used in arXiv:2605.06560 are publicly available via globus as described in the preprint.