POLARIZATION IN ${{\mathit B}_{{{c}}}^{+}}$ 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 ${{\mathit B}_{{{c}}}^{+}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit D}_{{{s}}}^{*+}}$

INSPIRE   PDGID:
S091FL1
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.34 \pm0.09}$ OUR AVERAGE
$0.30$ $\pm0.10$ $\pm0.04$ 1, 2
AAD
2022O
 ATLS ${{\mathit p}}{{\mathit p}}$ at 13 TeV
$0.48$ $\pm0.20$ 3
AAIJ
2013AS
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$0.62$ $\pm0.24$ 4
AAD
2016H
 ATLS ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
1  Supersedes the measurement of AAD 2016H.
2  AAD 2022O measures 1 $−$ $\Gamma _{L}/\Gamma $ = $0.70$ $\pm0.10$ $\pm0.04$.
3  AAIJ 2013AS measures 1 $−$ $\Gamma _{L}/\Gamma $ = $0.52$ $\pm0.20$.
4  AAD 2016H measures 1 $−$ $\Gamma _{L}/\Gamma $ = $0.38$ $\pm0.24$.
References