$\mathit CP$ 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   PDGID:
S040A05
VALUE DOCUMENT ID TECN  COMMENT
$-0.28$ $\pm0.10$ $\pm0.07$ 1
AAIJ
2016W
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
1  Measured relative to ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit \pi}^{-}}$ decay.
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
AAIJ 2016W
JHEP 1605 081 Observations of ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ Decays and Searches for Other ${{\mathit \Lambda}_{{b}}^{0}}$ and ${{\mathit \Xi}_{{b}}^{0}}$ Decays to ${{\mathit \Lambda}}{{\mathit h}^{+}}{{\mathit h}^{'-}}$ Final States