Observing Direct CP Violation in Untagged B-Meson Decays

Details Observing Direct CP Violation in Untagged B-Meson Decays Observing Direct CP Violation in Untagged B-Meson Decays

2003-08-22

arxiv.org/abs/hep-ph/0308228v2

Phys.Rev.D69:034011,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, REVTeX4, 1 eps figure, references added, typos corrected, version to appear in PRD

Scientific paper

10.1103/PhysRevD.69.034011

Direct CP violation can exist in untagged B-meson decays to self-conjugate, three-particle final states; it would be realized as a population asymmetry in the untagged decay rate across the mirror line of the Dalitz plot of the three-body decay. We explore the numerical size of this direct CP-violating effect in a variety of B-meson decays to three pseudoscalar mesons; we show that the resulting asymmetry is comparable to the partial rate asymmetry in the analogous tagged decays, making the search for direct CP violation in the untagged decay rate, for which greater statistics accrue, advantageous.

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