${{\boldsymbol \Xi}^{0}}$ DECAY PARAMETERS
See the ``Note on Baryon Decay Parameters'' in the neutron Listings.
$\alpha $ FOR ${{\boldsymbol \Xi}^{0}}$ $\rightarrow$ ${{\boldsymbol \Lambda}}{{\boldsymbol e}^{+}}{{\boldsymbol e}^{-}}$
INSPIRE search
| $-0.8$ $\pm0.2$ |
$397$ $\pm21$ |
1 |
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NA48 |
|
1
This BATLEY 2007C result is consistent with the asymmetry $\alpha $ for ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \gamma}}$ , as expected if the mechanism is internal bremsstrahlung.
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| References: |
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| PL B650 1 |
First Observation and Branching Fraction and Decay Parameter Measurements of the Weak Radiative Decay ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{+}}{{\mathit e}^{-}}$ |
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