$\mathit CP$ VIOLATION

$\mathit A_{CP}$ is defined as
$\mathit A_{CP}$ = ${B({{\mathit \Lambda}_{{{b}}}^{0}} \rightarrow {{\mathit f}}) – B({{\overline{\mathit \Lambda}}_{{{b}}}^{0}} \rightarrow {{\overline{\mathit f}}})\over B({{\mathit \Lambda}_{{{b}}}^{0}} \rightarrow {{\mathit f}}) + B({{\overline{\mathit \Lambda}}_{{{b}}}^{0}} \rightarrow {{\overline{\mathit f}}})}$,
the $\mathit CP$-violation asymmetry of exclusive ${{\mathit \Lambda}_{{{b}}}^{0}}$ and ${{\overline{\mathit \Lambda}}_{{{b}}}^{0}}$ decay.

$\mathit A_{CP}({{\mathit \Lambda}_{{{b}}}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{+}}{{\mathit K}^{-}}$)

INSPIRE   JSON PDGID:
S040A05
VALUE DOCUMENT ID TECN  COMMENT
$0.083$ $\pm0.023$ $\pm0.016$ 1
AAIJ
2025J
 
LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.28$ $\pm0.10$ $\pm0.07$ 1
AAIJ
2016W
 
LHCB Repl. by AAIJ 2025J
1  Measured relative to ${{\mathit \Lambda}_{{{b}}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{{c}}}^{+}}{{\mathit \pi}^{-}}$ decay.
Conservation Laws:
$\mathit CP$ INVARIANCE
References