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 _{L}/\Gamma $ in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit K}^{*}{(892)}^{0}}{{\mathit \rho}^{0}}$

INSPIRE   JSON  (beta) PDGID:
S042P8
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.173 \pm0.026}$ OUR AVERAGE
$0.164$ $\pm0.015$ $\pm0.022$
AAIJ
2019J
LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$0.40$ $\pm0.08$ $\pm0.11$
LEES
2012K
BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$0.57$ $\pm0.09$ $\pm0.08$
AUBERT,B
2006G
BABR Repl. by LEES 2012K
References