pdgLive Home   >   ${{\mathit \Xi}}$ BARYONS ($\mathit S$ = $-2$, $\mathit I$ = 1/2)   >   ${{\mathit \Xi}^{0}}$   >   $\alpha $ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{+}}{{\mathit e}^{-}}$

${{\mathit \Xi}^{0}}$ DECAY PARAMETERS

See the ``Note on Baryon Decay Parameters'' in the neutron Listings.

$\alpha $ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit e}^{+}}{{\mathit e}^{-}}$

INSPIRE   JSON  (beta) PDGID:

S023LEE

VALUE EVTS DOCUMENT ID TECN  COMMENT $-0.8$ $\pm0.2$ $397$ $\pm21$ 1 BATLEY 2007 C NA48 ${{\mathit p}}$ Be, 400 GeV 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.

References

Except where otherwise noted, content of the 2025 Review of Particle Physics is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy) and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2025. See LBNL disclaimers.