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 2006 Y BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$ $-0.034$ $\pm0.014$ $\pm0.009$ 1 AUBERT 2005 Z 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 2004 V BABR Repl. by AUBERT 2006Y $-0.063$ $\pm0.024$ $\pm0.014$ 1 AUBERT 2004 W 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