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Scale Setting for CLS 2+1 Simulations

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arxiv 2112.06696 v1 pith:SFGWE56N submitted 2021-12-13 hep-lat

Scale Setting for CLS 2+1 Simulations

Ben Stra{\ss}berger , Marco C\`e , Sara Collins , Antoine G\'erardin , Georg von Hippel , Piotr Korcyl , Tomasz Korzec , Daniel Mohler
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Andreas Risch Stefan Schaefer Wolfgang S\"oldner Rainer Sommer
This is my paper
classification hep-lat
keywords decayimprovedscalesettingtakenanalyzecarecombination
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present an update of the scale setting for $N_f=2+1$ flavor QCD using gradient flow scales and pseudo-scalar decay constants. We analyze the latest ensembles with $2+1$ flavors of non-perturbatively improved Wilson fermions generated by CLS for improved precision. Special care is taken to correct for mistuning by measuring directly the mass derivatives of the various observables. We determine $t_0$ with input taken from a combination of leptonic decay rates of the Pion and the Kaon.

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Cited by 3 Pith papers

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  1. Higher-order hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD

    hep-lat 2026-03 conditional novelty 9.0

    Lattice QCD yields the NLO HVP contribution to muon g-2 as -101.57(26)stat(54)syst ×10^{-11}, 1.4σ below the 2025 White Paper estimate and twice as precise.

  2. Electromagnetic pion mass splitting using a Pauli-Villars-regulated photon propagator

    hep-lat 2026-05 unverdicted novelty 6.0

    Lattice QCD calculation of pion electromagnetic mass splitting yields 4.56(22) MeV using Pauli-Villars photon propagator on CLS ensembles, agreeing with experiment after continuum, volume, and physical-point extrapolations.

  3. The strange and flavor-singlet axial form factors of the nucleon from lattice QCD

    hep-lat 2026-05 unverdicted novelty 5.0

    Lattice QCD yields the singlet axial form factor G_A^{u+d+s}(Q^2) and strange G_A^s(Q^2) with full error budget after chiral, continuum, and infinite-volume extrapolations.