Measurement of CP-violation asymmetries in D0 to Ks pi+ pi-

Abstract

We report a measurement of time-integrated CP-violation asymmetries in the resonant substructure of the three-body decay D0 to Ks pi+ pi- using CDF II data corresponding to 6.0 invfb of integrated luminosity from Tevatron ppbar collisions at sqrt(s) = 1.96 TeV. The charm mesons used in this analysis come from D*+(2010) to D0 pi+ and D*-(2010) to D0bar pi-, where the production flavor of the charm meson is determined by the charge of the accompanying pion. We apply a Dalitz-amplitude analysis for the description of the dynamic decay structure and use two complementary approaches, namely a full Dalitz-plot fit employing the isobar model for the contributing resonances and a model-independent bin-by-bin comparison of the D0 and D0bar Dalitz plots. We find no CP-violation effects and measure an asymmetry of ACP = (-0.05 +- 0.57 (stat) +- 0.54 (syst))% for the overall integrated CP-violation asymmetry, consistent with the standard model prediction.

arXiv comment15 pages

References in corpus (16)

• sPlot: a statistical tool to unfold data distributions
• Measurement of the J/Psi Meson and b-Hadron Production Cross Sections in ppbar Collisions at sqrt s = 1960 GeV
• Evidence for CP violation in time-integrated D0 -> h-h+ decay rates
• The CDF Silicon Vertex Trigger
• Study of the $D_s^{+}\to {\pi }^{-}{\pi }^{+}{\pi }^{+}$ decay and measurement of $f_0$ masses and widths
• Dalitz Analysis of the Decay $D^0\to K^{-}{\pi }^{+}{\pi }^0$
• Measurement of D0-D0bar mixing in D0->Ks pi+ pi- decays
• Measurement of D0-antiD0 mixing parameters using D0 -> K0S pi+ pi- and D0 -> KS0 K+ K- decays
• Dalitz Analysis of D^0 --> K_S^0 pi+ pi-
• Measurement of CP--violating asymmetries in D0 --> pi+ pi- and D0 --> K+K- decays at CDF
• CP Violation in τ->νπK_S and D->πK_S: The Importance of K_S-K_L Interference
• Interference Between Cabibbo Allowed and Doubly Forbidden Transitions in $D\ra K_{S,L} + π'$s Decays
• On a CP Anisotropy Measurement in the Dalitz Plot
• Measurements of the properties of Lambda_c(2595), Lambda_c(2625), Sigma_c(2455), and Sigma_c(2520) baryons
• Effect of $K^0-{\bar{K}}^0$ Mixing on $CP$ Asymmetries in Weak Decays of $D$ and $B$ Mesons
• Search for CP Violation in D^0--> K_S^0 pi^+pi^-

Cited by in corpus (17)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Mixing and $CP$ violation in the charm system
• Is the New Resonance Spin 0 or 2? Taking a Step Forward in the Higgs Boson Discovery
• 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
• Dalitz plot studies of D0 --> K0S pi+ pi- decays in a factorization approach
• Brief Review of Charm Physics
• Model-independent measurement of mixing parameters in $D^0\to K_S{\pi }^{+}{\pi }^{-}$ decays
• Effect of direct CP violation in charm on gamma extraction from B->DK, D->K0Spi+pi- Dalitz plot analysis
• First evidence for $\cos 2\beta >0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^0\to D^{(\ast )}{h}^0$ with $D\to K_S^0{\pi }^{+}{\pi }^{-}$ decays
• Dalitz plot studies of $D^0\to K_S^0{K}^{+}{K}^{-}$ decays in a factorization approach
• Search for $CP$ violation in D${}^0$ $\to$ K${}_{\mathrm{S}}^0$K${}_{\mathrm{S}}^0$ decays in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Review of Physics Results from the Tevatron: Heavy Flavor Physics
• Study of CP Violation in $D^{\pm }\to K^{\ast }(892{)}^0{\pi }^{\pm }+{\bar{K}}^{\ast }(892{)}^0{\pi }^{\pm }\to K_{S,L}^0{\pi }^0{\pi }^{\pm }$ Decays
• Measuring CP violation in 3- and 4-body decays
• Searches for BSM physics through CP violation at CDF