${{\mathit \Lambda}_{{{c}}}^{+}}$ DECAY PARAMETERS

See the review on ``Baryon Decay Parameters.''

$\alpha $ FOR ${{\mathit \Lambda}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit \Sigma}^{0}}{{\mathit \pi}^{+}}$

INSPIRE   JSON  (beta) PDGID:
S033A03
VALUE EVTS DOCUMENT ID TECN  COMMENT
$\bf{ -0.466 \pm0.018}$ OUR AVERAGE
$-0.463$ $\pm0.016$ $\pm0.008$ 105k 1
LI
2023C
 BELL ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at/near ${{\mathit \Upsilon}{(nS)}}$, n=1,...,5
$-0.73$ $\pm0.17$ $\pm0.07$
ABLIKIM
2019AX
 BES3 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at 4.6 GeV
1  LI 2023C obtained the value by a fit for the product $\alpha $ ${\times }$ $\alpha {}^{avg}_{{{\mathit \Lambda}}}$, and dividing by the value $\alpha {}^{avg}_{{{\mathit \Lambda}}}$ = $0.7542$ $\pm0.0026$ reported in ABLIKIM 2022AG.
References