Exploring CP violation and penguin effects through B0 d→D+D- and B0 s→D+ sD- s

Search for T, CP, and CPT violation in B0-B0 mixing with inclusive dilepton events.

We report the results of a search for T, CP, CPT, and violation in B0-B0 mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II factory. Using a sample of 232 x 10(6) BB pairs, we measure the T and CP violation parameter |q/p| - 1 = (-0.8 +/- 2.7(stat) +/- 1.9(syst) x 10(-3), and the CPT and CP parameters Imz = (13.9 +/- 7.3(stat) +/- 3.2(syst)) x 10(-3) and D...

Search for CP violation in B0-B0 mixing using partial reconstruction of B0→D*- Xℓ+ νℓ and a kaon tag.

We present results of a search for CP violation in B0- B0 mixing with the BABAR detector. We select a sample of B0→D*- Xℓ+ ν decays with a partial reconstruction method and use kaon tagging to assess the flavor of the other B meson in the event. We determine the CP violating asymmetry ACP≡[N(B0B0)-N(B0B0)]/[N(B0B0)+N(B0B0)]=(0.06±0.17(-0.32)(+0.38))%, corresponding to ΔCP=1-|q/p|=(0.29±0.84(-1....

Standard-model predictions for CP violation in B0-meson decay.

CP Violation in the B0 meson system with BaBar

The BABAR detector, at the PEP-II asymmetric B Factory at SLAC collected a sample of 32 million BB pairs whilst operating at energies near the Υ (4S) resonance between October 1999 and May 2001. An study of time-dependent CP -violating asymmetries in events where one neutral B meson is fully reconstructed in a final state containing charmonium produced the measurement sin 2β = 0.59± 0.14 (stat)...

Observation of CP violation in the B0 system

The BABAR detector, operating at energies near the Υ (4S) resonance at the PEP-II asymmetric B Factory at SLAC, has collected a sample of 32 million BB pairs by May 2001. A study of timedependent CP -violating asymmetries in events where one neutral B meson is fully reconstructed in a final state containing charmonium has resulted in the measurement sin2β = 0.59± 0.14 (stat) ± 0.05 (syst), whic...