The effect of sea quarks on the mass of the charm quark from lattice QCD

2005/08/31 by A. Dougall, C. M. Maynard, C.M. Maynard +2
Physics and Astronomy · #Bottom quark #Charm quark #Down quark #High-Energy Particle Collisions Research #Lattice QCD #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #Top quark #Up quark #hep-lat

paper · pdf · doi:10.1088/1126-6708/2006/01/171

published in Journal of High Energy Physics 2006(01), 171 (Springer Nature) · Added NP analysis of quenched data, corrected error in PCAC RGI mass, updated strange quark mass discussion and references, unified notation and corrected typos. No change in final result. Version accepted for publication in JHEP

arxiv created 2006/01/31 · openalex publication_date 2006/01/31 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We compute the mass of the charm quark using both quenched and dynamical lattice QCD calculations. We examine the effects of mass dependent lattice artifacts by comparing two different formalisms for the heavy quarks. We take the continuum limit of the charm mass in quenched QCD by extrapolating from three different lattice spacings. At a fixed lattice spacing, the mass of the charm quark is compared between quenched QCD and dynamical QCD with a sea quark mass around strange. In the continuum limit of quenched QCD, we find m_c(m_c)=1.29(7)(13) GeV. No evidence was seen for unquenching.

Citations

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