$\mathit CP$ VIOLATION

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

$\mathit A_{CP}({{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit f}_{{{2}}}{(1270)}}{{\mathit \pi}^{+}}$)

INSPIRE   JSON  (beta) PDGID:
S041CQ0
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ 0.40 \pm0.06}$ OUR AVERAGE
$0.468$ $\pm0.061$ $\pm0.046$ 1
AAIJ
2020A
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$0.267$ $\pm0.102$ $\pm0.048$ 2
AAIJ
2019AL
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$0.41$ $\pm0.25$ ${}^{+0.18}_{-0.15}$
AUBERT
2009L
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.004$ $\pm0.247$ ${}^{+0.028}_{-0.032}$
AUBERT,B
2005G
 BABR Repl. by AUBERT 2009L
1  This result is obtained with an amplitude analysis of ${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ decays, using the isobar model within the mass range 1.0 $<$ m(${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$) $<$ 1.5 GeV to describe the ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{\mathit S}{\mathrm -wave}$ contribution.
2  Uses amplitude analysis of ${{\mathit B}^{\pm}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit K}^{+}}{{\mathit K}^{-}}$ decays.
Conservation Laws:
$\mathit CP$ VIOLATION OBSERVED
References