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 ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit \chi}_{{{c1}}}}{{\mathit K}^{*}{(892)}^{0}}$

INSPIRE   JSON  (beta) PDGID:
S042GP1
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.83 {}^{+0.06}_{-0.08}}$ OUR AVERAGE  Error includes scale factor of 1.3.
$0.947$ ${}^{+0.038}_{-0.048}$ ${}^{+0.046}_{-0.099}$
MIZUK
2008
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$0.77$ $\pm0.07$ $\pm0.04$ 1
AUBERT
2007AD
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
1  Obtained by combining the ${{\mathit B}^{0}}$ and ${{\mathit B}^{+}}$ modes.
References