SEMILEPTONIC FORM FACTORS

$\mathit r_{\mathit v}{}\equiv\mathit V(0)/\mathit A_{1}$(0) in ${{\mathit D}^{+}},{{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit \rho}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}$

INSPIRE   JSON  (beta) PDGID:
S031RVD
VALUE EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 1.53 \pm0.08}$ OUR AVERAGE
$1.548$ $\pm0.079$ $\pm0.041$ 3.3k 1
ABLIKIM
2024CP
 BES3 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at 3.773 GeV
$1.48$ $\pm0.15$ $\pm0.05$ 2, 3
DOBBS
2013
CLEO ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at ${{\mathit \psi}{(3770)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$1.695$ $\pm0.083$ $\pm0.051$ 2.5k 2, 4
ABLIKIM
2019C
 BES3 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ at 3773 MeV
1  ${{\mathit D}^{0}}$ $\rightarrow$ ${{\mathit \rho}^{-}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}$ only, uses a single-pole-dominance parametrization.
2  Uses both ${{\mathit D}^{+}}$ and ${{\mathit D}^{0}}$ events.
3  Using PDG 2010 values of ${\it V}_{\it cd}$ and lifetimes, DOBBS 2013 gets $\mathit A_{1}$(0) = $0.56$ $\pm0.01$ ${}^{+0.02}_{-0.03},\mathit A_{2}$(0) = $0.47$ $\pm0.06$ $\pm0.04$, and $\mathit V$(0) = $0.84$ $\pm0.09$ ${}^{+0.05}_{-0.06}$.
4  Superseded in part by ABLIKIM 2024CP.
References