pdgLive

$\mathit CP$ VIOLATION PARAMETERS

$\mathit C_{{{\mathit \rho}^{0}} {{\mathit \pi}^{0}}}$ ( ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit \rho}^{0}}{{\mathit \pi}^{0}}$)

VALUE

DOCUMENT ID

TECN

COMMENT

$\bf{ 0.27 \pm0.24}$

OUR AVERAGE

$0.19$ $\pm0.23$ $\pm0.15$

BABR

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$

$0.49$ $\pm0.36$ $\pm0.28$

BELL

${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$

• • We do not use the following data for averages, fits, limits, etc. • •

$-0.10$ $\pm0.40$ $\pm0.53$

BABR

Repl. by LEES 2013J

$0.53$ ${}^{+0.67}_{-0.84}$ ${}^{+0.10}_{-0.15}$

BELL

Repl. by KUSAKA 2007

¹	Uses time-dependent Dalitz plot analysis of ${{\mathit B}^{0}}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}$ decays.

²	Quotes $\mathit A_{{{\mathit \rho}^{0}} {{\mathit \pi}^{0}}}$ which is equal to $−\mathit C_{{{\mathit \rho}^{0}} {{\mathit \pi}^{0}}}$.

Conservation Laws:

$\mathit CP$ INVARIANCE

Except where otherwise noted, content of the 2024 Review of Particle Physics is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy) and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2024. See LBNL disclaimers.