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.''

$\phi _{\perp}$ in ${{\mathit B}_{{{s}}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \phi}}$

INSPIRE   JSON  (beta) PDGID:
S086P13
VALUE (rad) DOCUMENT ID TECN  COMMENT
$\bf{ 2.99 \pm0.12}$ OUR AVERAGE  Error includes scale factor of 1.9.  See the ideogram below.
$2.903$ ${}^{+0.075}_{-0.074}$ $\pm0.048$ 1
AAIJ
2024A
LHCB ${{\mathit p}}{{\mathit p}}$ at 13 TeV
$3.22$ $\pm0.10$ $\pm0.05$ 2
AAD
2021AE
ATLS ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$2.78$ $\pm0.15$ $\pm0.06$ 3
SIRUNYAN
2021E
CMS ${{\mathit p}}{{\mathit p}}$ at 8, 13 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$2.77$ $\pm0.16$ $\pm0.05$ 3
SIRUNYAN
2021E
CMS ${{\mathit p}}{{\mathit p}}$ at 13 TeV
$2.64$ $\pm0.13$ $\pm0.10$
AAIJ
2019Q
LHCB Repl. by AAIJ 2024A
$4.15$ $\pm0.32$ $\pm0.16$ 3
AAD
2016AP
ATLS Repl. by AAD 2021AE
$2.98$ $\pm0.36$ $\pm0.66$ 3
KHACHATRYAN
2016S
CMS ${{\mathit p}}{{\mathit p}}$ at 8 TeV
$3.08$ ${}^{+0.14}_{-0.15}$ $\pm0.06$
AAIJ
2015I
LHCB Repl. by AAIJ 2019Q
$3.89$ $\pm0.47$ $\pm0.11$ 3
AAD
2014U
ATLS Repl. by AAD 2016AP
1  Measured using a time-dependent angular analysis of ${{\mathit B}_{{{s}}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ decays.
2  The fit found another solution with $\phi _{\perp}$ = $3.03$ $\pm0.05$ $\pm0.09$ rad.
3  Measured using a tagged, time-dependent angular analysis of ${{\mathit B}_{{{s}}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \phi}}$ decays.

           $\phi _{\perp}$ in ${{\mathit B}_{{{s}}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit \phi}}$ (rad)
References