POLARIZATION IN ${{\mathit B}^{+}}$ 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 _{\perp}/\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 ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{*+}}{{\overline{\mathit K}}^{*0}}$

INSPIRE   JSON  (beta) PDGID:
S041P05
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.82 {}^{+0.15}_{-0.21}}$ OUR AVERAGE
$1.06$ $\pm0.30$ $\pm0.14$ 1
GOH
2015
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$0.75$ ${}^{+0.16}_{-0.26}$ $\pm0.03$ 2, 3
AUBERT
2009F
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
1  Signal significance 2.7 standard deviations.
2  Signal significance 3.7 standard deviations.
3  Assumes equal production of ${{\mathit B}^{+}}$ and ${{\mathit B}^{0}}$ at the ${{\mathit \Upsilon}{(4S)}}$.
References