Phys. Rev. Lett. 58, 311–314 (1987)Measurement of the D+ and D0 lifetimesReceived 14 October 1986; published in the issue dated 26 January 1987 We have used a silicon-microstrip vertex detector with Tagged Photon spectrometer to measure the lifetimes of charmed mesons produced by a high-energy photon beam at Fermilab. The D+ lifetime, based on 969 D+→K-π+π+ decays, is measured to be (1.06±0.05±0.03)×10-12 s. Using 1360 D0 decays into the modes K-π+ and K-π+π-π+, we determine the lifetime to be (0.435±0.015±0.010)×10-12 s. The ratio τ(D+)/τ(D0) obtained from these two measurements is 2.44±0.14±0.08. © 1987 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.58.311
DOI:
10.1103/PhysRevLett.58.311
PACS:
13.25.+m, 14.40.Jz
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