d-s meson
noun Physics.
- a positively charged meson having a mass 3852 times that of the electron and a mean lifetime of approximately 4.7 X 10-13 seconds.

Ds+/D+ Kaon Correlations Analysis
D Meson Decays and New Physics
Feynman diagrams for (a), (b) the FCNC decay D+→π+μ+μ−, (c) the
D meson spectra and transition lines. | Download Scientific Diagram
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