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

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

$\alpha $ FOR ${{\mathit \Lambda}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit \Delta}{(1600)}^{++}}{{\mathit K}^{-}}$

INSPIRE   JSON  (beta) PDGID:
S033A24
The polarization is defined with respect to the daughter baryon momentum in the parent rest frame. See "Baryon Decay Parameters" review.
VALUE DOCUMENT ID TECN  COMMENT
$-0.50$ $\pm0.05$ $\pm0.01$ $\pm0.17$ 1
AAIJ
2023Z
 LHCB 1.7fb${}^{-1}$, ${{\mathit p}}{{\mathit p}}$ at 13 TeV
1  AAIJ 2023Z uses an amplitude analysis of 400k ${{\mathit \Lambda}_{{{c}}}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ decays, the last uncertainty is due to the amplitude model. Sign determined per authors; see also AAIJ 2023AJ.
References