Measurement of time integrated CP asymmetry in \DzToKSKS decay at Belle and Belle II experiments

Sumitted to PubDB: 2026-04-28

Category: Phd Thesis

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Principal Authors Sanjeeda Das
Date 2026-04-28
Belle II Number BELLE2-PTHESIS-2026-006
Abstract We measure the time-integrated \CP asymmetry, \Acp, in \DzToKSKS decays reconstructed in $e^+e^-\to\ccbar$ events collected by Belle and Belle II. The full Belle data sample is used, corresponding to an integrated luminosity of \BelleLumi. For Belle II, the data collected before Long Shutdown 1 (LS1) are used, and correspond to an integrated luminosity of \BelleIILumi. The \Dz decays are required to come from the flavor-conserving $\Dstarp\to\Dz\pip$ decay (\Dstarp tag) to determine the charm flavor at production time. A control sample of \Dstarp-tagged \DzToKpKm is used to correct for production and detection asymmetries.
Institute MNIT-Jaipur

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