POLARIZATION IN ${{\mathit B}_{{{s}}}^{0}}$ 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 _{\perp}/\Gamma $, and the relative phases $\phi _{\parallel}$ and $\phi _{\perp}$. In decays involving two tensor mesons, the transverse polarization states are described by parameters $\Gamma _{\parallel1}$, $\Gamma _{\parallel2}$, $\Gamma _{\perp1}$, $\Gamma _{\perp2}$ and their relative phases $\phi _{\parallel1}$, $\phi _{\parallel2}$, $\phi _{\perp1}$, $\phi _{\perp2}$. See also the review on “Polarization in ${{\mathit B}}$ Decays.''

$\Gamma _{L}/\Gamma $ for ${{\mathit B}_{{{s}}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\overline{\mathit K}}^{*}{(892)}^{0}}$

INSPIRE   JSON  (beta) PDGID:
S086PK1
Longitudinal polarization fraction, equals to ${{\mathit f}_{{{L}}}}$ using notation of “Polarization in ${{\mathit B}}$ decays” review.
VALUE DOCUMENT ID TECN  COMMENT
$0.497$ $\pm0.025$ $\pm0.025$
AAIJ
2015AV
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$0.50$ $\pm0.08$ $\pm0.02$ 1
AAIJ
2012AP
 LHCB Repl. by AAIJ 2015AV
1  The non-resonant ${{\mathit K}}{{\mathit \pi}}$ background contributions are subtracted. Also reports an ${\mathit S}{\mathrm -wave}$ amplitude $\vert A_{S}\vert ^2$ = $0.07$ ${}^{+0.15}_{-0.07}$.
References