$\mathit CP$ 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.

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

INSPIRE   PDGID:
S040CP2
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.025 \pm0.022}$ OUR AVERAGE
$-0.020$ $\pm0.013$ $\pm0.019$
AAIJ
2018AX
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7 and 8 TeV
$-0.10$ $\pm0.08$ $\pm0.04$
AALTONEN
2014P
 CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$0.37$ $\pm0.17$ $\pm0.03$
AALTONEN
2011N
 CDF Repl. by AALTONEN 2014P
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
AAIJ 2018AX
PL B787 124 Search for $C\!P$ violation in $\Lambda^0_b \to p K^-$ and $\Lambda^0_b \to p \pi^-$ decays
AALTONEN 2014P
PRL 113 242001 Measurements of Direct $\mathit CP$ -Violating Asymmetries in Charmless Decays of Bottom Baryons
AALTONEN 2011N
PRL 106 181802 Measurements of Direct $\mathit CP$ Violating Asymmetries in Charmless Decays of Strange Bottom Mesons and Bottom Baryons