${{\mathit \Xi}^{0}}$ DECAY PARAMETERS
See the ``Note on Baryon Decay Parameters'' in the neutron Listings.
$\alpha $ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \gamma}}$
INSPIRE search
See the note above on ``Radiative Hyperon Decays.''
| S023LG |
| $-0.704$ $\pm0.019$ $\pm0.064$ |
52k |
1 |
|
NA48 |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
| $-0.78$ $\pm0.18$ $\pm0.06$ |
672 |
|
|
NA48 |
| $-0.43$ $\pm0.44$ |
87 |
2 |
|
SPEC |
|
1
BATLEY 2010B also measured the ${{\overline{\mathit \Xi}}^{0}}$ $\rightarrow$ ${{\overline{\mathit \Lambda}}}{{\mathit \gamma}}$ asymmetry to be $-0.798$ $\pm0.064$ (no systematic error given) with 4769 events.
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|
2
The sign has been changed; see the erratum, JAMES 2002.
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|
| References: |
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PL B693 241
|
New Precise Measurements of the ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \gamma}}$ and ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\mathit \gamma}}$ Decay Asymmetries |
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PL B584 251
|
Measurement of the ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \gamma}}$ Decay Asymmetry and Branching Fraction |
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PRL 64 843
|
Branching Ratio and Asymmetry for ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \gamma}}$ |
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