${\mathit {\mathit b}}$ ${\mathit {\overline{\mathit b}}}$ MESONS
(including possibly non- ${\mathit {\mathit q}}$ ${\mathit {\overline{\mathit q}}}$ states) 		INSPIRE   JSON  (beta) PDGID:
M171

${{\mathit \eta}_{{b}}{(1S)}}$

$I^G(J^{PC})$ = $0^+(0^{- +})$ 
Quantum numbers shown are quark-model predictions. Observed in radiative decay of the ${{\mathit \Upsilon}{(3S)}}$, therefore ${}^{C} = +$.
${{\mathit \eta}_{{b}}{(1S)}}$ MASS   $9398.7 \pm2.0$ MeV (S = 1.5)
 
${\mathit m}_{{{\mathit \Upsilon}{(1S)}}}–{\mathit m}_{{{\mathit \eta}_{{b}}}}$   $62.3 \pm3.2$ MeV (S = 1.8)
 
${{\mathit \gamma}}$ ENERGY IN ${{\mathit \Upsilon}{(3S)}}$ DECAY   $920.6 {}^{+2.8}_{-3.2}$ MeV 
 
${{\mathit \gamma}}$ ENERGY IN ${{\mathit \Upsilon}{(2S)}}$ DECAY   $609 \pm5$ MeV 
 
${{\mathit \eta}_{{b}}{(1S)}}$ WIDTH   $10 {}^{+5}_{-4}$ MeV 
 
$\Gamma_{1}$ hadrons   seen  
 
$\Gamma_{2}$ 3 ${{\mathit h}^{+}}$3 ${{\mathit h}^{-}}$   not seen 4672
 
$\Gamma_{3}$ 2 ${{\mathit h}^{+}}$2 ${{\mathit h}^{-}}$   not seen 4689
 
$\Gamma_{4}$ 4 ${{\mathit h}^{+}}$4 ${{\mathit h}^{-}}$   not seen 4648
 
$\Gamma_{5}$ ${{\mathit \gamma}}{{\mathit \gamma}}$   not seen 4699
 
$\Gamma_{6}$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$   $<9\times 10^{-3}$ CL=90% 4698
 
$\Gamma_{7}$ ${{\mathit \tau}^{+}}{{\mathit \tau}^{-}}$   $<8\%$ CL=90% 4350
 
FOOTNOTES