${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{*-}}{{\mathit \ell}^{+}}{{\mathit \nu}_{{{{{\mathit \ell}}}}}}$ FORM FACTORS

$\mathit R_{1}$ (form factor ratio $\sim{}$ $\mathit V/\mathit A_{1}$)

INSPIRE   JSON  (beta) PDGID:
S042RV
$\mathit R_{1}$ (form factor ratio $\sim{}$ $\mathit V/\mathit A_{1}$)
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 1.239 \pm0.029}$ OUR AVERAGE
$1.229$ $\pm0.028$ $\pm0.009$ 1
WAHEED
2019
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$1.56$ $\pm0.07$ $\pm0.15$
AUBERT
2009A
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$1.18$ $\pm0.30$ $\pm0.12$
DUBOSCQ
1996
CLE2 ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$1.401$ $\pm0.034$ $\pm0.018$ 1
DUNGEL
2010
BELL Repl. by WAHEED 2019
$1.429$ $\pm0.061$ $\pm0.044$
AUBERT
2008R
 BABR Repl. by AUBERT 2009A
$1.396$ $\pm0.060$ $\pm0.044$
AUBERT,B
2006Z
 BABR Repl. by AUBERT 2008R
1  Uses fully reconstructed ${{\mathit D}^{*-}}{{\mathit \ell}^{+}}{{\mathit \nu}}$ events (${{\mathit \ell}}$ = ${{\mathit e}}$ or ${{\mathit \mu}}$).
References