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 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[yields][pi][sup+][pi][sup -][pi][sup 0], containing the distinct CP-conjugate states[rho][sup+][pi][sup -] and[rho][sup -][pi][sup+], provides one such example of a CP-enantiomeric pair. We illustrate the possibilities in various multi-particle final states.