Measurement of the Time-Dependent CP Asymmetry in B0 --> D(*)0_CP h0 Decays

Abstract

We report a measurement of the time-dependent CP-asymmetry parameters $\mathcal{S}$ and $\mathcal{C}$ in color-suppressed $B^0\to D^{(\ast )0}{h}^0$ decays, where $h^0$ is a ${\pi }^0$, $\eta$, or $\omega$ meson, and the $D^0$ decays to one of the CP eigenstates $K^{+}{K}^{-}$, $K_S{\pi }^0$, or $K_S\omega$. The data sample consists of $383\times 10^6$ ${\rm Y}(4S)\to B\bar{B}$ decays collected with the BABAR detector at the PEP-II asymmetric-energy $B$-factory at SLAC. The results are $\mathcal{S}=-0.56\pm 0.23\pm 0.05$ and $\mathcal{C}=-0.23\pm 0.16\pm 0.04$, where the first error is statistical and the second is systematic.

7 pages, 2 postscript figures, submitted to Phys.Rev.Lett Minor (final) editing/proofing with journal referees and editors

References in corpus (3)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Observation of Time-Dependent CP Violation in B0 -> eta' K0 Decays and Improved Measurements of CP Asymmetries in B0 -> phiK0, KsKsKs and B0 -> J/psi K0 Decays

Cited by in corpus (8)

• Dalitz plot analysis of $B^0\to {\overline{D}}^0{\pi }^{+}{\pi }^{-}$ decays
• On new physics in $\Delta {\Gamma }_d$
• Measurement of $\cos 2\beta$ in $B^0\to D^{(\ast )}{h}^0$ with $D\to K_S^0{\pi }^{+}{\pi }^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data
• Measurement of cos2beta in B0->D(*)h0 Decays with a Time-Dependent Dalitz Plot Analysis of D->KSpi+pi-
• A Method to Measure cos(2beta) Using Time-Dependent Dalitz Plot Analysis of B0 -> D_CP pi+ pi-
• Branching Fraction Measurements of the Color-Suppressed Decays B0bar to D(*)0 pi0, D(*)0 eta, D(*)0 omega, and D(*)0 eta_prime and Measurement of the Polarization in the Decay B0bar to D*0 omega
• Moriond QCD 2007 - Theory Summary
• Measurements of the CKM Angle beta/phi_1 at B Factories