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This chapter outlines the extraction of \({C\!P}\) observables from the combined LHCb and BESIII datasets. Two methods are applied to data: the unbinned optimal Fourier method and the binned method. Fourier coefficients are calculated from event distributions and fitted simultaneously to determine strong-phase parameters and \({C\!P}\) observables. Extensive cross-checks with pseudo-experiments confirm the consistency and robustness of the fit.

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Fit of \({C\!P}\) Observables

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  • 发表日期：

    2026年

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  • Shunan Zhang

摘要

This chapter outlines the extraction of \({C\!P}\) observables from the combined LHCb and BESIII datasets. Two methods are applied to data: the unbinned optimal Fourier method and the binned method. Fourier coefficients are calculated from event distributions and fitted simultaneously to determine strong-phase parameters and \({C\!P}\) observables. Extensive cross-checks with pseudo-experiments confirm the consistency and robustness of the fit.