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

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${{\boldsymbol b}}$-baryon ADMIXTURE (${{\boldsymbol \Lambda}_{{b}}}$, ${{\boldsymbol \Xi}_{{b}}}$, ${{\boldsymbol \Omega}_{{b}}}$)

${{\mathit b}}$-baryon ADMIXTURE MEAN LIFE

${{\boldsymbol b}}$-baryon ADMIXTURE (${{\boldsymbol \Lambda}_{{b}}}$, ${{\boldsymbol \Xi}_{{b}}}$, ${{\boldsymbol \Omega}_{{b}}}$) Decay Modes
These branching fractions are actually an average over weakly decaying ${{\mathit b}}$-baryons weighted by their production rates at the LHC, LEP, and Tevatron, branching ratios, and detection efficiencies. They scale with the ${{\mathit b}}$-baryon production fraction B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit b}}$ -baryon). 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, $\mathit e.g.,$ ${{\mathit B}}$ $\rightarrow$ ${{\mathit D}^{\pm}}$ anything, the values usually are multiplicities, not branching fractions. They can be greater than one.
Mode   Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/ Conf. Level P(MeV/c)   $\Gamma_{1}$ ${{\mathit p}}{{\mathit \mu}^{-}}{{\overline{\mathit \nu}}}$ anything   $(5.8^{+2.3}_{-2.0})\%$     $\Gamma_{2}$ ${{\mathit p}}{{\mathit \ell}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything   $(5.6\pm{1.2})\%$     $\Gamma_{3}$ ${{\mathit p}}$ anything   $(70\pm{22})\%$     $\Gamma_{4}$ ${{\mathit \Lambda}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything   $(3.8\pm{0.6})\%$     $\Gamma_{5}$ ${{\mathit \Lambda}}{{\mathit \ell}^{+}}{{\mathit \nu}_{{{{\mathit \ell}}}}}$ anything   $(3.2\pm{0.8})\%$     $\Gamma_{6}$ ${{\mathit \Lambda}}$ anything   $(39\pm{7})\%$     $\Gamma_{7}$ ${{\mathit \Xi}^{-}}{{\mathit \ell}^{-}}{{\overline{\mathit \nu}}_{{{{\mathit \ell}}}}}$ anything   $(4.6\pm{1.4})\times 10^{-3}$ S=1.2
FOOTNOTES