${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ , ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$   Decay Mode Summary INSPIRE   PDGID:
S040.55
Mode Fraction ($\Gamma_i$ / $\Gamma$) Scale Factor/
Conf. Level		 P(MeV/c)  
$\Gamma_{15}$ ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ , ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ ($1.6$ $\pm0.8$) $ \times 10^{-6}$
The following data is related to the above value:
$\Gamma($ ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)/\Gamma($ ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}{{\mathit J / \psi}}$ , ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ $)$
$\Gamma_{61}/\Gamma_{15}$