FORWARD-BACKWARD ASYMMETRIES

The forward-backward assymmetry is defined as A$_{FB}$ = [ N(q$_{FB}>$ 0) $−$ N(q$_{FB}<$ 0)] $/$ [N(q$_{FB}>$ 0) + N(q$_{FB}<$ 0) ], where q$_{FB}$ = $−$ q$_{B}\cdot{}$sgn(${{\mathit \eta}_{{{B}}}}$) with q$_{B}$ as the ${{\mathit B}}$ hadron electric charge, ${{\mathit \eta}_{{{B}}}}$ as its pseudorapidity, and sgn(${{\mathit \eta}_{{{B}}}}$) as a sign function of ${{\mathit \eta}_{{{B}}}}$.

A$_{FB}({{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit K}^{*}{(892)}^{+}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$) (15.0 $<$ q${}^{2}<$ 19.0 GeV${}^{2}$/c${}^{4}$)

INSPIRE   JSON  (beta) PDGID:
S041A52
VALUE DOCUMENT ID TECN  COMMENT
$0.31$ $\pm0.06$ $\pm0.04$ 1
AAIJ
2021J
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
1  The full set of CP-averaged angular observables is measured as a function of the q${}^{2}$. The A$_{FB}$ is measured related to the dimuon system.
References