Erratum to: Symanzik improvement with dynamical charm: a 3+1 scheme for Wilson quarks

Autor: Fritzsch, Patrick, Sommer, Rainer, Stollenwerk, Felix, Wolff, Ulli, ALPHA Collaboration
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of high energy physics 2020(10), 165 (1-2) (2020). doi:10.1007/JHEP10(2020)165
Journal of High Energy Physics, Vol 2020, Iss 10, Pp 1-2 (2020)
Journal of High Energy Physics
DOI: 10.1007/JHEP10(2020)165
Popis: Journal of high energy physics 2020(10), 165 (1-2) (2020). doi:10.1007/JHEP10(2020)165
We discuss the problem of lattice artefacts in QCD simulations enhanced by the introduction of dynamical charmed quarks. In particular, we advocate the use of a massive renormalization scheme with a close to realistic charm mass. To maintain O(a) improvement for Wilson type fermions in this case we define a finite size scheme and carry out a nonperturbative estimation of the clover coefficient c$_{sw}$. It is summarized in a fit formula c$_{sw}$(g$_{0}^{2}$ ) that defines an improved action suitable for future dynamical charm simulations.
Published by SISSA, [Trieste]
Databáze: OpenAIRE