Download or read book Direct CP Violation in Untagged B-meson Decays written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct CP violation can exist in untagged, neutral B-meson decays to certain self-conjugate, hadronic final states. As a necessary condition, the resonances which appear therein must permit the identification of distinct, CP-conjugate states--in analogy to stereochemistry, we term such states ''CP-enantiomers.'' These states permit the construction of CP-even and CP-odd amplitude combinations and of observables sensitive to their interference, which are non-zero if direct CP violation is present. The decay B 2!??−?°, containing the distinct CP-conjugate states?+?− and?−?+, provides one such example of a CP-enantiomeric pair. We illustrate the possibilities in various multi-particle final states.