$\mathit CP$ VIOLATION PARAMETERS

(S$_{+}$ $+$ S$_{-})/$2 ( ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{*-}}{{\mathit \pi}^{+}}$ )

INSPIRE   PDGID:
S042LD3
S$_{\pm{}}$ = $−$ ${2 Im(\lambda _{\pm{}})\over 1 + \vert \lambda _{\pm{}}\vert ^2}$ where $\lambda _{+}$ and $\lambda _{−}$ are defined in the C$_{ {{\mathit \pi}} {{\mathit \pi}} }$ datablock above for ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{*-}}{{\mathit \pi}^{+}}$ and ${{\overline{\mathit B}}^{0}}$ $\rightarrow$ ${{\mathit D}^{*+}}{{\mathit \pi}^{-}}$ .

VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.039 \pm0.011}$ OUR AVERAGE
$-0.046$ $\pm0.013$ $\pm0.015$ 1
BAHINIPATI
2011
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.040$ $\pm0.023$ $\pm0.010$ 2
AUBERT
2006Y
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.034$ $\pm0.014$ $\pm0.009$ 1
AUBERT
2005Z
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.039$ $\pm0.020$ $\pm0.013$ 3
RONGA
2006
BELL Repl. by BAHINIPATI 2011
$-0.030$ $\pm0.028$ $\pm0.018$ 1
GERSHON
2005
BELL Repl. by RONGA 2006
$-0.068$ $\pm0.038$ $\pm0.020$ 2
AUBERT
2004V
 BABR Repl. by AUBERT 2006Y
$-0.063$ $\pm0.024$ $\pm0.014$ 1
AUBERT
2004W
 BABR Repl. by AUBERT 2005Z
$0.060$ $\pm0.040$ $\pm0.019$ 2
SARANGI
2004
BELL Repl. by RONGA 2006
1  Uses partially reconstructed ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{*\pm}}{{\mathit \pi}^{\mp}}$ decays.
2  Uses fully reconstructed ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{*\pm}}{{\mathit \pi}^{\mp}}$ decays.
3  Combines the results from fully reconstructed and partially reconstructed ${{\mathit D}^{*}}{{\mathit \pi}}$ events by taking weighted averages. Assumes that systematic errors from physics parameters and fit biases in the two measurements are 100$\%$ correlated.
Conservation Laws:
$\mathit CP$ INVARIANCE
References:
BAHINIPATI 2011
PR D84 021101 Measurements of Time-Dependent $\mathit CP$ Asymmetries in ${{\mathit B}}$ $\rightarrow$ ${{\mathit D}^{*\mp}}{{\mathit \pi}^{\pm}}$ Decays using a Partial Reconstruction Technique
AUBERT 2006Y
PR D73 111101 Measurement of Time-Dependent $\mathit CP$ Asymmetries in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{{(*)}\pm}}{{\mathit \pi}^{\mp}}$ and ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{\pm}}{{\mathit \rho}^{\mp}}$ Decays
RONGA 2006
PR D73 092003 Measurement of $\mathit CP$ Violation in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{*-}}{{\mathit \pi}^{+}}$ and ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}^{-}}{{\mathit \pi}^{+}}$ Decays
AUBERT 2005Z
PR D71 112003 Measurement of Time-Dependent $\mathit CP$-Violating Asymmetries and Constraints on sin(2$\beta +\gamma $) with Partial Reconstruction of ${{\mathit B}}$ $\rightarrow$ ${{\mathit D}^{*\mp}}{{\mathit \pi}^{\pm}}$ Decays
GERSHON 2005
PL B624 11 Time-Dependent $\mathit CP$ Violation Effects in Partially Reconstructed ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}}{}^{*\mp{}}$ ${{\mathit \pi}^{\pm}}$ Decays
AUBERT 2004V
PRL 92 251801 Measurement of Time-Dependent $\mathit CP$ Asymmetries in ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}}{}^{(*)}{}^{\mp{}}{{\mathit \pi}^{\pm}}$ Decays and Constraints on sin(2$\beta +\gamma $)
AUBERT 2004W
PRL 92 251802 Measurement of Time-Dependent $\mathit CP$ Asymmetries and Constraints on sin(2$\beta +\gamma $) with Partial Reconstruction of ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit D}}{}^{*\mp{}}$ ${{\mathit \pi}^{\pm}}$ Decays
SARANGI 2004
PRL 93 031802 Study of $\mathit CP$ Violating Effects in Time Dependent ${{\mathit B}^{0}}({{\overline{\mathit B}}^{0}}$) $\rightarrow$ $\mathit D{}^{(*)}{}^{\mp{}}{{\mathit \pi}^{\pm}}$