The strong-phase differences between D0 -> KSL0 pi+pi- and D0 -> KSL0 pi+pi- decays are one of the most important inputs in measuring the CP violating angle gamma via B- -> DK- decays. They also play a key role in studies of charm mixing and indirect CP violation. In this paper, the strong-phase differences are determined in a model-independent way with quantum-correlated D0-D0 decays from 7.93 fb-1 of e+e- annihilation data at s = 3.773 GeV by the BESIII experiment. These results are the most precise to date and are expected to significantly reduce associated uncertainties in determining the CP violating angle gamma and related charm mixing parameters.
Updated model-independent measurement of the strong-phase differences between D0 and D0→KS/L0π+π- decays
A. Amoroso;F. Bianchi;A. Bortone;M. Destefanis;F. De Mori;M. Greco;M. Maggiora;S. Marcello;S. Sosio;S. Spataro;
2025-01-01
Abstract
The strong-phase differences between D0 -> KSL0 pi+pi- and D0 -> KSL0 pi+pi- decays are one of the most important inputs in measuring the CP violating angle gamma via B- -> DK- decays. They also play a key role in studies of charm mixing and indirect CP violation. In this paper, the strong-phase differences are determined in a model-independent way with quantum-correlated D0-D0 decays from 7.93 fb-1 of e+e- annihilation data at s = 3.773 GeV by the BESIII experiment. These results are the most precise to date and are expected to significantly reduce associated uncertainties in determining the CP violating angle gamma and related charm mixing parameters.| File | Dimensione | Formato | |
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JHEP06(2025)086.pdf
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