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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/138437
Measurement of D0−¯¯¯D0 Mixing from a Time-Dependent Amplitude Analysis of D0→K+π−π0 Decays
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We present evidence of D 0 − ¯¯¯ D 0 mixing using a time-dependent amplitude analysis of the decay D 0 → K + π − π 0 in a data sample of 384 fb − 1 collected with the BABAR detector at the PEP-II e + e − collider at the Stanford Linear Accelerator Center. Assuming C P conservation, we measure the mixing parameters x ′ K π π 0 = [ 2.61 + 0.57 − 0.68 ( stat ) ± 0.39 ( syst ) ] % , y ′ K π π 0 = [ − 0.06 + 0.55 − 0.64 ( stat ) ± 0.34 ( syst ) ] % . This result is inconsistent with the no-mixing hypothesis with a significance of 3.2 standard deviations. We find no evidence of C P violation in mixing.
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GARRA TICÓ, Jordi, GRAUGÉS POUS, Eugeni and BABAR Collaboration. Measurement of D0−¯¯¯D0 Mixing from a Time-Dependent Amplitude Analysis of D0→K+π−π0 Decays. Physical Review Letters. 2009. Vol. 103, num. 21, pags. 211801. ISSN 0031-9007. [consulted: 18 of June of 2026]. Available at: https://hdl.handle.net/2445/138437