We report precise measurements of the D0 and D+ meson lifetimes by the E687 Collaboration at Fermilab. The measurements have been made using 16000 fully reconstructed decays of the D0 into the K-π+ and K-π+π-π+ final states and 9000 decays of the D+ into the K-π+π+ final state. The lifetimes of the D0 and D+ mesons are measured to be 0.413±0.004±0.003 ps and 1.048±0.015±01011 ps respectively.
ASJC Scopus subject areas
- Nuclear and High Energy Physics