We report a measurement of time-integrated CP-violation
asymmetries in the resonant substructure of the thre+ e-body decay
D0→KS0π+π- using CDF II data corresponding to 6.0 fb-1
of integrated luminosity from Tevatron pp̅ collisions at
√s=1.96 TeV. The charm mesons used in this analysis come from
D*+(2010)→D0π+ and D*-(2010)→D̅ 0π-, where the production flavor
of the charm meson is determined by the charge of the accompanying
pi+on. 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 D̅
0 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.
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Updated: Wednesday, 2012 October 17 10:01:04 CDT automatically from input from Stephanie A Schuler