BOTTOM BARYONS
($\mathit B$ = $-1$)
${{\mathit \Lambda}_{{b}}^{0}}$ = ${{\mathit u}}{{\mathit d}}{{\mathit b}}$ , ${{\mathit \Xi}_{{b}}^{0}}$ = ${{\mathit u}}{{\mathit s}}{{\mathit b}}$ , ${{\mathit \Xi}_{{b}}^{-}}$ = ${{\mathit d}}{{\mathit s}}{{\mathit b}}$ , ${{\mathit \Omega}_{{b}}^{-}}$ = ${{\mathit s}}{{\mathit s}}{{\mathit b}}$
INSPIRE search

${{\boldsymbol \Xi}_{{b}}^{0}}$

$I(J^P)$ = $1/2(1/2^{+})$ I, J, P need confirmation.
In the quark model, ${{\mathit \Xi}_{{b}}^{0}}$ and ${{\mathit \Xi}_{{b}}^{-}}$ are an isodoublet ($\mathit usb$, $\mathit dsb$) state; the lowest ${{\mathit \Xi}_{{b}}^{0}}$ and ${{\mathit \Xi}_{{b}}^{-}}$ ought to have $\mathit J{}^{P} = 1/2{}^{+}$. None of $\mathit I$, $\mathit J$, or ${}^{P}$ have actually been measured.
${{\boldsymbol \Xi}_{{b}}^{0}}$ MASS
${{\mathit \Xi}_{{b}}^{0}}$ MASS   $5791.9 \pm0.5$ MeV 
 
${\mathit m}_{{{\mathit \Xi}_{{b}}^{0}}}–{\mathit m}_{{{\mathit \Lambda}_{{b}}^{0}}}$   $172.5 \pm0.4$ MeV 
 
${{\boldsymbol \Xi}_{{b}}^{0}}$ MEAN LIFE
${{\mathit \Xi}_{{b}}^{0}}$ MEAN LIFE   $(1.480 \pm0.030) \times 10^{-12}$ s 
 
${{\mathit \tau}_{{{mix}}}}$ (1/2${{\mathit \pi}}$) times the oscillation period
 
$\boldsymbol P$ AND $\boldsymbol CP$ VIOLATION ASYMMETRIES
a$_{P}$( ${{\mathit \Xi}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ )   $-0.03 \pm0.05$  
 
a$_{CP}$( ${{\mathit \Xi}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ )   $-0.04 \pm0.05$  
 
$\Delta \mathit A_{CP}$( ${{\mathit \Xi}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ )   $-0.17 \pm0.11$  
 
$\Delta \mathit A_{CP}$( ${{\mathit \Xi}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit K}^{-}}$ )   $-0.07 \pm0.08$  
 
$\Gamma_{1}$ ${{\mathit p}}{{\mathit D}^{0}}{{\mathit K}^{-}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )  $(1.7\pm{0.6})\times 10^{-6}$ 2374
 
$\Gamma_{2}$ ${{\mathit p}}{{\overline{\mathit K}}^{0}}{{\mathit \pi}^{-}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\overline{\mathit b}}}$ $\rightarrow$ ${{\mathit B}^{0}}$ )  $<1.6\times 10^{-6}$ CL=90% 2783
 
$\Gamma_{3}$ ${{\mathit p}}{{\mathit K}^{0}}{{\mathit K}^{-}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\overline{\mathit b}}}$ $\rightarrow$ ${{\mathit B}^{0}}$ )  $<1.1\times 10^{-6}$ CL=90% 2730
 
$\Gamma_{4}$ ${{\mathit \Lambda}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\mathit b}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}$ )  $<1.7\times 10^{-6}$ CL=90% 2781
 
$\Gamma_{5}$ ${{\mathit \Lambda}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\mathit b}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}$ )  $<8\times 10^{-7}$ CL=90% 2751
 
$\Gamma_{6}$ ${{\mathit \Lambda}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\mathit b}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}$ )  $<3\times 10^{-7}$ CL=90% 2698
 
$\Gamma_{7}$ ${{\mathit J / \psi}}{{\mathit \Lambda}}$  seen 1868
 
$\Gamma_{8}$ ${{\mathit J / \psi}}{{\mathit \Xi}^{0}}$  seen 1785
 
$\Gamma_{9}$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit K}^{-}}{\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )  $(6\pm{4})\times 10^{-7}$ 2416
 
$\Gamma_{10}$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\mathit b}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}$ )  $(1.9\pm{0.4})\times 10^{-6}$ 2766
 
$\Gamma_{11}$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\mathit b}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}$ )  $(1.73\pm{0.32})\times 10^{-6}$ 2704
 
$\Gamma_{12}$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ ${\times }$ B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit \Xi}_{{b}}^{0}}$ )/B(${{\mathit b}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}$ )  $(1.8\pm{1.0})\times 10^{-7}$ 2620
 
FOOTNOTES