Using a Time-dependent Dalitz Plot Analysis
نویسندگان
چکیده
We report a measurement of CP-violating asymmetries in B 0 → (ρπ) 0 → π + π − π 0 decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 347 million 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 B 0 meson and derive the physically relevant quantities from these coefficients. In particular we find a three standard deviation evidence of direct CP-violation in the B 0 → ρ ± π ∓ decays, with systematic uncertainties included. We also achieve a constraint of the angle α of the Unitarity Triangle. All results presented are preliminary.
منابع مشابه
Measurement of CP - violating asymmetries in B 0 → ( ρπ ) 0 decays using a time - dependent Dalitz plot analysis
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تاریخ انتشار 2008