We report the results of a CP violation analysis of the decay B±→Dπ+π-π0K±, where Dπ+π-π0 indicates a neutral D meson detected in the final state π+π-π0, excluding KS0π0. The analysis makes use of 324×106 e+e-→BB̄ events recorded by the BABAR experiment at the PEP-II e+e- storage ring. Analyzing the π+π-π0 Dalitz plot distribution and the B±→Dπ+π- π0K± 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<rB<0.78, -30°<γ<76°, -27°<δ<78°. We also measure the magnitudes and phases of the components of the D0→π+π-π0 decay amplitude. © 2007 The American Physical Society.

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Measurement of CP violation parameters with a dalitz plot analysis of B±→Dπ+π-π0K±. PHYSICAL REVIEW LETTERS, 99(25), 1-7 [10.1103/PhysRevLett.99.251801].

Measurement of CP violation parameters with a dalitz plot analysis of B±→Dπ+π-π0K±

PATRIGNANI, CLAUDIA;
2007

Abstract

We report the results of a CP violation analysis of the decay B±→Dπ+π-π0K±, where Dπ+π-π0 indicates a neutral D meson detected in the final state π+π-π0, excluding KS0π0. The analysis makes use of 324×106 e+e-→BB̄ events recorded by the BABAR experiment at the PEP-II e+e- storage ring. Analyzing the π+π-π0 Dalitz plot distribution and the B±→Dπ+π- π0K± 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
2007
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Measurement of CP violation parameters with a dalitz plot analysis of B±→Dπ+π-π0K±. PHYSICAL REVIEW LETTERS, 99(25), 1-7 [10.1103/PhysRevLett.99.251801].
Aubert, B; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A.; Grauges, E.; Lopez, L.; Palano, A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/550628
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