We report a measurement of CP-violating asymmetries in B0→(ρπ) 0→π+π-π0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375×106 Υ(4S) →BB̄ 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.

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Measurement of CP-violating asymmetries in B0→(ρπ)0 using a time-dependent Dalitz plot analysis. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 76(1) [10.1103/PhysRevD.76.012004].

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

CARPINELLI, Massimo;
2007

Abstract

We report a measurement of CP-violating asymmetries in B0→(ρπ) 0→π+π-π0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375×106 Υ(4S) →BB̄ 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.
Articolo in rivista - Articolo scientifico
BABAR detector
English
2007
76
1
012004
none
Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J., Poireau, V., et al. (2007). Measurement of CP-violating asymmetries in B0→(ρπ)0 using a time-dependent Dalitz plot analysis. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 76(1) [10.1103/PhysRevD.76.012004].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389656
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