$\mathit CP$ 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.

$\Delta \mathit A_{CP}$( ${{\mathit \Lambda}_{{{b}}}^{0}}$ $\rightarrow$ ( ${{\mathit p}}{{\mathit K}^{-}})_{highmass}{{\mathit \phi}{(1020)}}$)

INSPIRE   PDGID:
S040A37
$\Delta \mathit A_{CP}{}\equiv$ $\mathit A_{CP}$ ( ${{\mathit \Lambda}_{{{b}}}^{0}}$ $\rightarrow$ ( ${{\mathit p}}{{\mathit K}^{-}})_{highmass}{{\mathit \phi}{(1020)}}$) $−$ $\mathit A_{CP}$( ${{\mathit \Lambda}_{{{b}}}^{0}}$ $\rightarrow$ ( ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$) ${{\mathit \pi}^{-}}$). m(${{\mathit p}}{{\mathit K}^{-}}$) $>$ 1600 MeV and 1005 $<$ m(${{\mathit K}^{+}}{{\mathit K}^{-}}$) $<$ 1040 MeV.
VALUE ($ 10^{-2} $) DOCUMENT ID TECN  COMMENT
$-0.7$ $\pm3.3$ $\pm0.7$ 1
AAIJ
2019AH
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7 and 8 TeV
1  Measurement done with $\mathit m({{\mathit p}}{{\mathit K}^{-}}$) $>$ 1600 MeV/c${}^{2}$.
Conservation Laws:
$\mathit CP$ INVARIANCE
References