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

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

$\mathit A_{CP}$ FOR ${{\mathit \Xi}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \gamma}}$, ${{\overline{\mathit \Xi}}^{0}}$ $\rightarrow$ ${{\overline{\mathit \Lambda}}}{{\mathit \gamma}}$

INSPIRE   JSON  (beta) PDGID:
S023A04
$\mathit A_{CP}$ = (${{\mathit \alpha}}$ + ${{\overline{\mathit \alpha}}}$) $/$ (${{\mathit \alpha}}$ $−$ ${{\overline{\mathit \alpha}}}$)
S023A04
VALUE EVTS DOCUMENT ID TECN  COMMENT
$-0.120$ $\pm0.084$ $\pm0.024$ 0.64k 1
ABLIKIM
2025AL
 
BES3 ${{\mathit J / \psi}}$ $\rightarrow$ ${{\mathit \Xi}^{0}}{{\overline{\mathit \Xi}}^{0}}$
1  Probes $\mathit CP$ symmetry and weak phases with entangled doubly-strange baryons.
References