${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}$ / ${{\mathit \pi}^{-}}{{\mathit \ell}^{+}}{{\mathit \nu}_{{{{{\mathit \ell}}}}}}$ FORM FACTORS

$\mathit r_{1}{}\equiv\mathit a_{1}/\mathit a_{0}$ in ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \ell}^{+}}{{\mathit \nu}_{{{{{\mathit \ell}}}}}}$

INSPIRE   JSON  (beta) PDGID:
S032FK1
VALUE EVTS DOCUMENT ID TECN  COMMENT
$\bf{ -2.40 \pm0.16}$ OUR AVERAGE
$-2.33$ $\pm0.16$ $\pm0.08$ 71k 1
ABLIKIM
2015X
 BES3 ${{\mathit \ell}}={{\mathit e}}$, 3-parameter fit
$-2.65$ $\pm0.34$ $\pm0.08$
BESSON
2009
CLEO ${{\mathit \ell}}={{\mathit e}}$, 3-parameter fit
1  The 2-parameter fit yields $-2.23$ $\pm0.09$ $\pm0.06$.
References