On a CP Anisotropy Measurement in the Dalitz Plot

Details On a CP Anisotropy Measurement in the Dalitz Plot On a CP Anisotropy Measurement in the Dalitz Plot

2009-05-26

arxiv.org/abs/0905.4233v3

Phys.Rev.D80:096006,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 16 figures Version that will appear in PRD, that typos have been corrected, references and clarifications added

Scientific paper

10.1103/PhysRevD.80.096006

We describe a novel use of the Dalitz plot to probe CP symmetry in three-body modes of $B$ and $D$ mesons. It is based on an observable inspired by astronomers' practice, namely the significance in the difference between corresponding Dalitz plot bins. It provides a model independent mapping of local CP asymmetries. We illustrate the method for probing CP symmetry in the complementary cases of B decays, where sizable or even large effects can be expected, yet have to be differentiated against leading Standard Model contributions, and $D$ decays, where one cannot count on sizable effects, yet has to deal with much less Standard Model background.

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