000003552 001__ 3552
000003552 005__ 20230502212502.0
000003552 037__ $$aBELLE2-PTHESIS-2023-009
000003552 041__ $$aeng
000003552 100__ $$aEmma R. Oxford
000003552 245__ $$aMeasurements of $CP$ asymmetries in $D^0 \to \pi^+ \pi^- \pi^0$ decays in Dalitz plot regions at Belle II
000003552 260__ $$aPittsburgh, PA, USA$$bCarnegie Mellon University$$c2023
000003552 300__ $$a121
000003552 500__ $$aPresented on 26 04 2023
000003552 502__ $$aPhD$$bPittsburgh, PA, USA, Carnegie Mellon University$$c2023
000003552 520__ $$aWe perform a search for charge-parity violation (CPV) in the density of events in a binned Dalitz plot of $D^*$-tagged $D^0 \to \pi^+ \pi^- \pi^0$ decays. The data used for this analysis is 362~$\text{fb}^{-1}$ of $\Upsilon(4S)$ data collected at Belle II from 2019--2022. We develop a novel binned Dalitz analysis method to determine local CPV; our method carefully accounts for nuisance asymmetries not due to CPV using the data itself rather than relying on simulations. All final asymmetry measurements are consistent with the no-CPV hypothesis. Our analysis method will scale well as Belle II collects more data, and we expect both the statistical and systematic uncertainties on the results to decrease if the analysis is redone on a larger dataset.
000003552 700__ $$aRoy A. Briere$$edir.
000003552 8560_ $$feoxford@andrew.cmu.edu
000003552 8564_ $$uhttps://docs.belle2.org/record/3552/files/BELLE2-PTHESIS-2023-009.pdf
000003552 980__ $$aTHESIS