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arxiv: 0801.0840 · v2 · submitted 2008-01-06 · ✦ hep-ex

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The use of quantum-correlated D⁰ decays for phi3 measurement

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classification ✦ hep-ex
keywords phi3analysisdecaysfindmeasurementmodel-independentallowsangle
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We report the results of the Monte-Carlo study of the method to determine the CKM angle phi3 using Dalitz plot analysis of D0 decay from B->DK process. Our main goal is to find the optimal strategy for a model-independent phi3 extraction. We find that the analysis using decays of CP-tagged D mesons only cannot provide a completely model-independent measurement in the case of limited data sample. The procedure involving binned analysis of B->DK and psi(3770)->(K0 pi+ pi-)_D (K0 pi+ pi-)_D decays is proposed, that allows to reach the phi3 precision comparable to unbinned model-dependent fit.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Unbinned extraction of $\gamma$ from $B\to DK$ with normalizing flows

    hep-ph 2026-05 unverdicted novelty 7.0

    Normalizing flows trained on D decay data create a continuous unbinned model of Dalitz plot amplitudes, allowing extraction of gamma from B decay data with successful recovery of injected values in Monte Carlo tests.

  2. Precise measurement of the CKM angle $\gamma$ with a novel approach

    hep-ex 2026-04 unverdicted novelty 7.0

    A joint fit to LHCb B to D h decays and BESIII quantum-correlated D Dbar data yields gamma = 71.3 plus or minus 5.0 degrees, the most precise measurement to date.

  3. Measurement of the CKM angle $\gamma$ in $B^{\pm} \rightarrow D(\rightarrow K^{0}_{\rm S} h^{\prime+}h^{\prime-})h^{\pm}$ decays with a novel approach

    hep-ex 2026-04 unverdicted novelty 7.0

    A novel model-independent approach with per-event phase-space weights on combined BESIII and LHCb data measures the CKM angle γ as (71.3 ± 5.0)° in B± → D(→ K0S h'+h'-) h± decays.