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.

A$_{P}({{\mathit B}_{{{c}}}^{+}}$)

INSPIRE   PDGID:
S091A00
A$_{P}({{\mathit B}_{{{c}}}^{+}}$) = [${\mathit \sigma (}{{\mathit B}_{{{c}}}^{-}}{)}$ $−$ ${\mathit \sigma (}{{\mathit B}_{{{c}}}^{+}}{)}$] $/$ [${\mathit \sigma (}{{\mathit B}_{{{c}}}^{-}}{)}$ $+$ ${\mathit \sigma (}{{\mathit B}_{{{c}}}^{+}}{)}$]
VALUE ($ 10^{-2} $) DOCUMENT ID TECN  COMMENT
$\bf{ -1.0 \pm1.0}$ OUR AVERAGE
$-2.5$ $\pm2.1$ $\pm0.5$ 1
AAIJ
2019AI
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7 TeV
$-0.5$ $\pm1.1$ $\pm0.4$ 1
AAIJ
2019AI
 LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV
1  Measured using ${{\mathit B}_{{{c}}}^{+}}$ semileptonic decays.
References