FORWARD-BACKWARD ASYMMETRIES

The forward-backward assymmetry is defined as A$_{FB}({{\mathit \Lambda}_{{{b}}}^{0}}$) = [ N(F) $−$ N(B)] $/$ [N(F) + N(B) ], where the forward (F) direction corresponds to a particle (${{\mathit \Lambda}_{{{b}}}^{0}}$ or ${{\mathit \Lambda}_{{{b}}}^{-}}$) sharing valence quark flavors with a beam particle with the same sign of rapidity.

A$_{FB}({{\mathit \Lambda}_{{{b}}}^{0}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \Lambda}}$)

INSPIRE   JSON  (beta) PDGID:
S040FBL
VALUE DOCUMENT ID TECN  COMMENT
$0.04$ $\pm0.07$ $\pm0.02$ 1
ABAZOV
2015I
 D0 ${{\mathit p}}{{\mathit p}}$ at 1.96 TeV
1  The measured asymmetry integrated over rapidity y in the range of 0.1 $<$ $\vert $y$\vert $ $<$ 2.0.
References