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# Measurement of CP-Violating Asymmetries in $B^0\to (\rho\pi)^0$ Using a Time-Dependent Dalitz Plot Analysis

Abstract : We report a measurement of CP-violating asymmetries in B0-->(rhopi)0-->pi+pi-pi0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375 million Y(4S) --> BBbar decays, collected by the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form-factor terms occurring in the time-dependent decay rate of the B0 meson. We derive the physically relevant quantities from these coefficients. In particular, we measure a constraint on the angle alpha of the Unitarity Triangle.
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Journal articles
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http://hal.in2p3.fr/in2p3-00137605
Contributor : Claudine Bombar <>
Submitted on : Tuesday, March 20, 2007 - 5:12:55 PM
Last modification on : Sunday, June 20, 2021 - 3:35:13 AM

### Citation

B. Aubert, M. Bona, D. Boutigny, Y. Karyotakis, J.P. Lees, et al.. Measurement of CP-Violating Asymmetries in $B^0\to (\rho\pi)^0$ Using a Time-Dependent Dalitz Plot Analysis. Physical Review D, American Physical Society, 2007, 76, pp.012004. ⟨10.1103/PhysRevD.76.012004⟩. ⟨in2p3-00137605⟩

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