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 _{}/\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.

F$_{L}({{\mathit B}}$ $\rightarrow$ ${{\mathit K}^{*}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$) (2.0 $<$ q${}^{2}<$ 4.3 GeV${}^{2}$/c${}^{4}$)

INSPIRE   JSON  (beta) PDGID:
S049FL4
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.77 \pm0.05}$ OUR AVERAGE
$0.876$ ${}^{+0.109}_{-0.097}$ $\pm0.017$ 1
AAIJ
2016B
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$0.80$ $\pm0.08$ $\pm0.06$
KHACHATRYAN
2016D
 CMS ${{\mathit p}}{{\mathit p}}$ at 8 TeV
$0.74$ ${}^{+0.10}_{-0.09}$ ${}^{+0.02}_{-0.03}$
AAIJ
2013Y
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7 TeV, ${{\mathit K}^{*0}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$
$0.65$ $\pm0.17$ $\pm0.03$
CHATRCHYAN
2013BL
 CMS ${{\mathit p}}{{\mathit p}}$ at 7 TeV
$0.37$ ${}^{+0.25}_{-0.24}$ $\pm0.10$
AALTONEN
2012I
 CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
$0.71$ $\pm0.24$ $\pm0.05$
WEI
2009A
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$0.77$ $\pm0.15$ $\pm0.03$
AAIJ
2012U
 LHCB Repl. by AAIJ 2013Y
$0.40$ ${}^{+0.32}_{-0.33}$ $\pm0.08$
AALTONEN
2011L
 CDF Repl. by AALTONEN 2012I
1  Measured in 2.5 $<$ q${}^{2}<$ 4.0 GeV${}^{2}$/c${}^{4}$.
References