Towards precision charm physics with a mixed action

Alessandro Conigli; Julien Frison; Gregorio Herdoíza; Carlos Pena; Alejandro Sáez; Javier Ugarrio

Towards precision charm physics with a mixed action

High Energy Physics - Lattice 2022-12-22 v1

Authors: Alessandro Conigli , Julien Frison , Gregorio Herdoíza , Carlos Pena , Alejandro Sáez , Javier Ugarrio

Abstract

We report on our first set of results for charm physics, using a mixed-action setup with maximally twisted valence fermions on CLS $N_f=2+1$ ensembles. This setup avoids the need of improvement coefficients to subtract $O(am_c)$ effects. The charm quark mass, $D$ and $D_s$ decay constants are computed on a subset of CLS ensembles, which allows to take the continuum limit and extrapolate to the physical pion mass, and assess the scaling properties. Special attention is paid to the implementation of techniques to deal with systematic uncertainties. Our results show excellent prospects for high-precision computations on the full set of ensembles.

Keywords

charm quark production in high energy collisions quark masses lattice qcd meson decay

Cite

@article{arxiv.2212.11045,
  title  = {Towards precision charm physics with a mixed action},
  author = {Alessandro Conigli and Julien Frison and Gregorio Herdoíza and Carlos Pena and Alejandro Sáez and Javier Ugarrio},
  journal= {arXiv preprint arXiv:2212.11045},
  year   = {2022}
}

Towards precision charm physics with a mixed action

Abstract

Keywords

Cite

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