${\mathit m}_{{{\mathit b}}}/{\mathit m}_{{{\mathit c}}}$ MASS RATIO

INSPIRE   JSON  (beta) PDGID:
Q004MBR
The ratio is that of the $\overline{\rm{}MS}$ masses at a common scale, for four dynamical quark flavors.
VALUE DOCUMENT ID TECN
$\bf{ 4.58 \pm0.01}$ OUR EVALUATION
$\bf{ 4.580 \pm0.007}$ OUR AVERAGE
$4.586$ $\pm0.012$ 1
HATTON
2021
LATT
$4.578$ $\pm0.008$ 2
BAZAVOV
2018
LATT
$4.528$ $\pm0.054$ 3
CHAKRABORTY
2015
LATT
1  HATTON 2021 determine ${{\overline{\mathit m}}_{{{b}}}}({{\mathit \mu}})/{{\overline{\mathit m}}_{{{c}}}}({{\mathit \mu}}$) = $4.586$ $\pm0.012$ at ${{\mathit \mu}}$ = 3 GeV with a lattice QCD + quenched QED simulation using the HISQ action and including ${{\mathit n}_{{{f}}}}$ =2+1+1 flavors of sea quarks. The ratio depends weakly on ${{\mathit \mu}}$ because of QED effects.
2  BAZAVOV 2018 determine the quark masses using a lattice computation with staggered fermions and four active quark flavors for the ${\mathit {\mathit u}}$, ${\mathit {\mathit d}}$, ${\mathit {\mathit s}}$, ${\mathit {\mathit c}}$ quarks and five active flavors for the ${\mathit {\mathit b}}$ quark.
3  CHAKRABORTY 2015 is a lattice computation using 4 dynamical quark flavors.
References