QUARKS
INSPIRE search

Light Quarks (${\boldsymbol {\boldsymbol u}}$, ${\boldsymbol {\boldsymbol d}}$, ${\boldsymbol {\boldsymbol s}}$)

${\mathit {\mathit u}}$-QUARK MASS   $2.2 {}^{+0.5}_{-0.4}$ MeV 
${\mathit {\mathit d}}$-QUARK MASS   $4.7 {}^{+0.5}_{-0.3}$ MeV 
${{\overline{\mathit m}}}$ = (${\mathit m}_{{{\mathit u}}}+{\mathit m}_{{{\mathit d}}})/$2   $3.5 {}^{+0.5}_{-0.2}$ MeV 
${\mathit m}_{{{\mathit u}}}/{\mathit m}_{{{\mathit d}}}$ MASS RATIO   $0.48 {}^{+0.07}_{-0.08}$  
${\mathit {\mathit s}}$-QUARK MASS   $95 {}^{+9}_{-3}$ MeV 
OTHER LIGHT QUARK MASS RATIOS
${\mathit m}_{{{\mathit s}}}/{\mathit m}_{{{\mathit d}}}$ MASS RATIO   $\text{17 - 22}$  
${\mathit m}_{{{\mathit s}}}/{{\overline{\mathit m}}}$ MASS RATIO   $27.3 \pm0.7$  
$\mathit Q$ MASS RATIO