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Measurement of the charm-mixing parameter $y_{CP}$ in $D^{0}\to K^{0}_{S}\omega$ decays at Belle
- Source :
- Phys. Rev. D 102, 071102 (2020)
- Publication Year :
- 2019
-
Abstract
- We report the first measurement of the charm-mixing parameter $y_{CP}$ in $D^{0}$ decays to the $CP$-odd final state $K^{0}_{S}\omega$. The study uses the full Belle $e^{+}e^-$ annihilation data sample of $976\rm~ fb^{-1}$ taken at or near the $\Upsilon(4S)$ centre-of-mass energy. We find $y_{CP} = (0.96 \pm 0.91 \pm 0.61 {}^{+0.17}_{-0.00})\%$, where the first uncertainty is statistical, the second is systematic due to event selection and background, and the last is due to possible presence of $CP$-even decays in the data sample.<br />Comment: 8 pages, 2 figures
- Subjects :
- High Energy Physics - Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 102, 071102 (2020)
- Publication Type :
- Report
- Accession number :
- edsarx.1912.10912
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.102.071102