BOTTOM BARYONS
($\mathit B$ = $-1$)
${{\mathit \Lambda}_{{{b}}}^{0}}$ = ${{\mathit u}}{{\mathit d}}{{\mathit b}}$, ${{\mathit \Sigma}_{{{b}}}^{0}}$ = ${{\mathit u}}{{\mathit d}}{{\mathit b}}$, ${{\mathit \Sigma}_{{{b}}}^{+}}$ = ${{\mathit u}}{{\mathit u}}{{\mathit b}}$, ${{\mathit \Sigma}_{{{b}}}^{-}}$ = ${{\mathit d}}{{\mathit d}}{{\mathit b}}$
${{\mathit \Xi}_{{{b}}}^{0}}$ = ${{\mathit u}}{{\mathit s}}{{\mathit b}}$, ${{\mathit \Xi}_{{{b}}}^{-}}$ = ${{\mathit d}}{{\mathit s}}{{\mathit b}}$, ${{\mathit \Omega}_{{{b}}}^{-}}$ = ${{\mathit s}}{{\mathit s}}{{\mathit b}}$
INSPIRE   JSON PDGID:
S063

${{\mathit \Omega}_{{{b}}}^{-}}$

$I(J^P)$ = $0(1/2^{+})$ I, J, P need confirmation.
In the quark model ${{\mathit \Omega}_{{{b}}}^{-}}$ is $\mathit ssb$ ground state. None of its quantum numbers has been measured.
${{\mathit \Omega}_{{{b}}}^{-}}$ MASS   $6045.8 \pm0.8$ MeV 
 
${\mathit m}_{{{\mathit \Omega}_{{{b}}}^{-}}}–{\mathit m}_{{{\mathit \Lambda}_{{{b}}}^{0}}}$   $426.4 \pm2.2$ MeV 
 
${\mathit m}_{{{\mathit \Omega}_{{{b}}}^{-}}}–{\mathit m}_{{{\mathit \Xi}_{{{b}}}^{-}}}$   $248.5 \pm0.6$ MeV 
 
${{\mathit \Omega}_{{{b}}}}$ MEAN LIFE   $(1.64 {}^{+0.18}_{-0.17}) \times 10^{-12}$ s 
 
$\tau ({{\mathit \Omega}_{{{b}}}^{-}})/\tau ({{\mathit \Xi}_{{{b}}}^{-}}$) mean life ratio   $1.11 \pm0.16$  
 
$\Gamma_{1}$ ${{\mathit J / \psi}}{{\mathit \Omega}^{-}}$ ${\times }$B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Omega}_{{{b}}}}$)   $(1.4^{+0.5}_{-0.4})\times 10^{-6}$ S=1.6  1805
 
$\Gamma_{2}$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{-}}$ ${\times }$B( ${{\overline{\mathit b}}}$ $\rightarrow$ ${{\mathit \Omega}_{{{b}}}}$)   $<2.3\times 10^{-9}$ CL=90% 2865
 
$\Gamma_{3}$ ${{\mathit p}}{{\mathit \pi}^{-}}{{\mathit \pi}^{-}}$ ${\times }$B( ${{\overline{\mathit b}}}$ $\rightarrow$ ${{\mathit \Omega}_{{{b}}}}$)   $<1.5\times 10^{-8}$ CL=90% 2943
 
$\Gamma_{4}$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{-}}$ ${\times }$B( ${{\overline{\mathit b}}}$ $\rightarrow$ ${{\mathit \Omega}_{{{b}}}}$)   $<7\times 10^{-9}$ CL=90% 2915
 
$\Gamma_{5}$ ${{\mathit \Omega}_{{{c}}}^{0}}{{\mathit \pi}^{-}}$   seen 2420
 
$\Gamma_{6}$ ${{\mathit \Omega}_{{{c}}}^{0}}{{\mathit \pi}^{-}}$ , ${{\mathit \Omega}_{{{c}}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$   seen  
 
$\Gamma_{7}$ ${{\mathit \Xi}_{{{c}}}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{-}}$   seen 2473
 
FOOTNOTES