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

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

$\phi $ ANGLE FOR ${{\boldsymbol \Xi}^{0}}$ $\rightarrow$ ${{\boldsymbol \Lambda}}{{\boldsymbol \pi}^{0}}$ (tan$\phi $ = $\beta /\gamma $) INSPIRE search

VALUE ($^\circ{}$) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 21 \pm12}$ OUR AVERAGE
$16$ $\pm17$ 652
BALTAY
1974
HBC 1.75 ${\mathrm {GeV/}}\mathit c$ ${{\mathit K}^{-}}{{\mathit p}}$
$38$ $\pm19$ 739 1
DAUBER
1969
HBC
$-8$ $\pm30$ 146 2
BERGE
1966
HBC
1  DAUBER 1969 uses $\alpha _{\Lambda }$ = $0.647$ $\pm0.020$.
2  The errors have been multiplied by 1.2 due to approximations used for the ${{\mathit \Xi}}$ polarization; see DAUBER 1969 for a discussion.
  References:
BALTAY 1974
PR D9 49 Properties of ${{\mathit \Xi}^{-}}$ and ${{\mathit \Xi}^{0}}$ Hyperons
DAUBER 1969
PR 179 1262 Production and Decay of Cascade Hyperons
BERGE 1966
PR 147 945 Some Properties of ${{\mathit \Xi}^{-}}$ and ${{\mathit \Xi}^{0}}$ Hyperons Produced in ${{\mathit K}^{-}}{{\mathit p}}$ Interactions between 1.05 and 1.7 ${\mathrm {GeV/}}\mathit c$