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${{\mathit \Lambda}}$ MASS
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$1115.683 \pm0.006$ MeV
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(${\mathit m}_{{{\mathit \Lambda}}}{\mathit m}_{{{\overline{\mathit \Lambda}}}}$) $/$ ${\mathit m}_{{{\mathit \Lambda}}}$
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$(-0.1 \pm1.1) \times 10^{-5}$ (S = 1.6)
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Mean life $\tau $
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$(2.632 \pm0.020) \times 10^{-10}$ s (S = 1.6)
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(${\mathit \tau}_{{{\mathit \Lambda}}}{\mathit \tau}_{{{\overline{\mathit \Lambda}}}}$) $/$ ${\mathit \tau}_{{{\mathit \Lambda}}}$
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$-0.001 \pm0.009$
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${{\mathit \Lambda}}$ MAGNETIC MOMENT
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$-0.613 \pm0.004$ $\mu _{\mathit N}$
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${{\mathit \Lambda}}$ ELECTRIC DIPOLE MOMENT
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$<1.5 \times 10^{-16}$ $\mathit e~$cm CL=95.0%
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$\alpha _{−}$ FOR ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}$
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$0.732 \pm0.014$ (S = 2.3)
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$\alpha _{+}$ FOR ${{\overline{\mathit \Lambda}}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit \pi}^{+}}$
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$-0.758 \pm0.012$
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${{\overline{\mathit \alpha}}_{{0}}}$ FOR ${{\overline{\mathit \Lambda}}}$ $\rightarrow$ ${{\overline{\mathit n}}}{{\mathit \pi}^{0}}$
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$-0.692 \pm0.017$
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$\phi $ ANGLE FOR ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}$ (tan$\phi $ = $\beta $ $/$ $\gamma $)
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$-6.5 \pm3.5$ $^\circ{}$
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$\alpha _{0}$ $/$ $\alpha _{−}$ = $\alpha\mathrm {( {{\mathit \Lambda}} \rightarrow {{\mathit n}} {{\mathit \pi}^{0}} )}$ $/$ $\alpha\mathrm {( {{\mathit \Lambda}} \rightarrow {{\mathit p}} {{\mathit \pi}^{-}} )}$
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$1.01 \pm0.07$
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${{\overline{\mathit \alpha}}_{{0}}}$ $/$ ${{\mathit \alpha}_{{+}}}$ in ${{\overline{\mathit \Lambda}}}$ $\rightarrow$ ${{\overline{\mathit n}}}{{\mathit \pi}^{0}}$ , ${{\overline{\mathit \Lambda}}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit \pi}^{+}}$
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$0.913 \pm0.030$
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($\alpha $ + $\bar\alpha)/(\alpha −\bar\alpha$) in ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}$ , ${{\overline{\mathit \Lambda}}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit \pi}^{+}}$
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$-0.002 \pm0.012$
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R = $\vert G_{E}/G_{M}\vert $ in ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}$ , ${{\overline{\mathit \Lambda}}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit \pi}^{+}}$
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$0.96 \pm0.14$
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$\Delta \Phi $ = $\Phi _{E}$ $−$ $\Phi _{M}$ in ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}$ , ${{\overline{\mathit \Lambda}}}$ $\rightarrow$ ${{\overline{\mathit p}}}{{\mathit \pi}^{+}}$
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$37 \pm13$ degrees
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${\mathit g}_{{{\mathit A}}}$ $/$ ${\mathit g}_{{{\mathit V}}}$ FOR ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$
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$-0.718 \pm0.015$
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Mode |
Fraction ($\Gamma_i$ / $\Gamma$) |
Scale Factor/ Conf. Level |
P (MeV/c) |
$\Gamma_{1}$ | ${{\mathit p}}{{\mathit \pi}^{-}}$ | |
$(63.9\pm{0.5})\%$
| | 101 |
| $\Gamma_{2}$ | ${{\mathit n}}{{\mathit \pi}^{0}}$ | |
$(35.8\pm{0.5})\%$
| | 104 |
| $\Gamma_{3}$ | ${{\mathit n}}{{\mathit \gamma}}$ | |
$(1.75\pm{0.15})\times 10^{-3}$
| | 162 |
| $\Gamma_{4}$ | ${{\mathit p}}{{\mathit \pi}^{-}}{{\mathit \gamma}}$ | [1] |
$(8.4\pm{1.4})\times 10^{-4}$
| | 101 |
| $\Gamma_{5}$ | ${{\mathit p}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$ | |
$(8.32\pm{0.14})\times 10^{-4}$
| | 163 |
| $\Gamma_{6}$ | ${{\mathit p}}{{\mathit \mu}^{-}}{{\overline{\mathit \nu}}_{{\mu}}}$ | |
$(1.57\pm{0.35})\times 10^{-4}$
| | 131 |
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▸ | Lepton ($\mathit L$) and/or Baryon ($\mathit B$) number violating decay modes |
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