Measurement of CP-violating asymmetries in B0(ρπ)0 using a time-dependent Dalitz plot analysis

B. Aubert et al. (BABAR Collaboration)
Phys. Rev. D 76, 012004 – Published 18 July 2007

Abstract

We report a measurement of CP-violating asymmetries in B0(ρπ)0π+ππ0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375×106 Υ(4S)BB¯ 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 α of the unitarity triangle.

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  • Received 3 March 2007

DOI:https://doi.org/10.1103/PhysRevD.76.012004

©2007 American Physical Society

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Vol. 76, Iss. 1 — 1 July 2007

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