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2007-12-17

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/140123

Measurement of CP Violation Parameters with a Dalitz Plot Analysis of B±→Dπ+π−π0K±

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We report the results of a C P violation analysis of the decay B ± → D π + π − π 0 K ± , where D π + π − π 0 indicates a neutral D meson detected in the final state π + π − π 0 , excluding K 0 S π 0 . The analysis makes use of 324 × 10 6 e + e − → B ¯¯¯ B events recorded by the BABAR experiment at the PEP-II e + e − storage ring. Analyzing the π + π − π 0 Dalitz plot distribution and the B ± → D π + π − π 0 K ± branching fraction and decay rate asymmetry, we find the following one-standard-deviation constraints on the amplitude ratio and on the weak and strong phases: 0.06 < r B < 0.78 , − 30 ° < γ < 76 ° , − 27 ° < δ < 78 ° . We also measure the magnitudes and phases of the components of the D 0 → π + π − π 0 decay amplitude.

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https://doi.org/10.1103/PhysRevLett.99.251801

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Física de partícules, Experiments

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Particle physics, Experiments

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Articles publicats en revistes (Física Quàntica i Astrofísica)

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GRAUGÉS POUS, Eugeni and BABAR Collaboration. Measurement of CP Violation Parameters with a Dalitz Plot Analysis of B±→Dπ+π−π0K±. Physical Review Letters. 2007. Vol. 99, num. 25, pags. 251801. ISSN 0031-9007. [consulted: 10 of October of 2026]. Available at: https://hdl.handle.net/2445/140123

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