POLARIZATION IN ${{\mathit B}^{0}}$ DECAY

In decays involving two vector mesons, one can distinguish among the states in which meson polarizations are both longitudinal ($\mathit L$) or both are transverse and parallel ($\parallel$) or perpendicular ($\perp$) to each other with the parameters $\Gamma _{L}/\Gamma $, $\Gamma _{}/\Gamma $, and the relative phases $\phi _{\parallel}$ and $\phi _{\perp}$. See the definitions in the note on “Polarization in ${{\mathit B}}$ Decays” review in the ${{\mathit B}^{0}}$ Particle Listings.

$\Gamma _{\mathit L}/\Gamma $ in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{*-}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}$

INSPIRE   JSON  (beta) PDGID:
S042A47
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.516 \pm0.013}$ OUR AVERAGE  Error includes scale factor of 1.9.
$0.520$ $\pm0.005$ $\pm0.005$
ADACHI
2023J
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$0.471$ $\pm0.024$ $\pm0.007$
PRIM
2023
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
References