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

${{\boldsymbol \Lambda}_{{b}}^{0}}$ $I(J^P)$ = $0(1/2^{+})$

In the quark model, a ${{\mathit \Lambda}_{{b}}^{0}}$ is an isospin-0 ${{\mathit u}}{{\mathit d}}{{\mathit b}}$ state. The lowest ${{\mathit \Lambda}_{{b}}^{0}}$ ought to have $\mathit J{}^{P} = 1/2{}^{+}$. None of $\mathit I$, $\mathit J$, or $\mathit P$ have actually been measured.
${\boldsymbol \tau}_{{{\boldsymbol \Lambda}_{{b}}^{0}}}/{\boldsymbol \tau}_{{{\boldsymbol B}^{0}}}$ MEAN LIFE RATIO
 ${\mathit \tau}_{{{\mathit \Lambda}_{{b}}^{0}}}/{\mathit \tau}_{{{\mathit B}^{0}}}$ (direct measurements) $0.964 \pm0.007$
${{\boldsymbol \Lambda}_{{b}}^{0}}$ ${{\overline{\boldsymbol \Lambda}}_{{b}}^{0}}$ Production Asymmetry
 ${{\mathit A}}_{P}({{\mathit \Lambda}_{{b}}^{0}}$) $0.024 \pm0.016$  (S = 1.1)
The branching fractions B( ${{\mathit b}}$ -baryon $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything) and B( ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything) are not pure measurements because the underlying measured products of these with B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}}$ -baryon) were used to determine B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}}$ -baryon), as described in the note Production and Decay of ${{\mathit b}}$-Flavored Hadrons.''
For inclusive branching fractions, $\mathit e.g.,$ ${{\mathit \Lambda}_{{b}}}$ $\rightarrow$ ${{\overline{\mathit \Lambda}}_{{c}}}$ anything, the values usually are multiplicities, not branching fractions. They can be greater than one.
 constrained fit information