A Measurement of the D0 and D+ Lifetimes
by P.L. Frabetti et al.
We present precision measurements of
the D0 and D+ meson lifetimes
using approximately 7500 fully reconstructed
D0 --> K pi, K pi pi pi,
D+ --> K pi pi, and charge conjugate decays.
The data were accumulated by the
Fermilab high energy photoproduction experiment
E687. The lifetime of the D0 is measured to be
0.424 +- 0.011 +- 0.007 picoseconds while
the D+ lifetime is measured to be
1.075 +- 0.040 +- 0.018 picoseconds.