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Article Dans Une Revue Physical Review D Année : 2023

Distance between various discretized fermion actions

Dian-Jun Zhao
  • Fonction : Auteur
Fangcheng He
  • Fonction : Auteur
Luchang Jin
  • Fonction : Auteur
Peng Sun
  • Fonction : Auteur
Yi-Bo Yang
  • Fonction : Auteur
Kuan Zhang
  • Fonction : Auteur

Résumé

We present the leading order mixed-action effect $\Delta_{\rm mix}\equiv m_{\pi,{\rm vs}}^2-\frac{m_{\pi,{\rm vv}}^2+m_{\pi,{\rm ss}}^2}{2}$ using HISQ, clover or overlap valence fermion actions on the gauge ensembles with kinds of sea fermion actions among a widely used lattice spacing range $a\in [0.04,0.19]$~fm. The results suggest that $\Delta_{\rm mix}$ decreases on the forth order of the lattice spacing on the gauge ensembles with the dynamical chiral sea fermion, likes the Domain wall or HISQ fermion. When the clover sea fermion action which has explicit chiral symmetry breaking is used in the ensemble, $\Delta_{\rm mix}$ can be much larger regardless of the valence fermion action used.

Dates et versions

hal-03760447 , version 1 (25-08-2022)

Identifiants

Citer

Dian-Jun Zhao, Gen Wang, Fangcheng He, Luchang Jin, Peng Sun, et al.. Distance between various discretized fermion actions. Physical Review D, 2023, 107 (9), pp.L091501. ⟨10.1103/PhysRevD.107.L091501⟩. ⟨hal-03760447⟩
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