${\mathit {\mathit b}}$ ${\mathit {\overline{\mathit b}}}$ MESONS
(including possibly non-${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states) 		INSPIRE   JSON PDGID:
M049

${{\mathit \Upsilon}{(1S)}}$

$I^G(J^{PC})$ = $0^-(1^{- -})$ 
${{\mathit \Upsilon}{(1S)}}$ MASS   $9460.40 \pm0.10$ MeV 
 
${{\mathit \Upsilon}{(1S)}}$ WIDTH   $54.02 \pm1.25$ keV 
 
$\Gamma_{1}$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$   $(2.60\pm{0.10})\%$ 4384
 
$\Gamma_{2}$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$   $(2.39\pm{0.08})\%$ 4730
 
$\Gamma_{3}$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$   $(2.48\pm{0.04})\%$ 4729
 
FOOTNOTES