pdgLive

${{\mathit D}^{0}}$ MEAN LIFE

Measurements with an error $>10 \times 10^{-15}~$s have been omitted from the average.

VALUE ($ 10^{-15} $ s)

EVTS

DOCUMENT ID

TECN

COMMENT

$\bf{ 410.3 \pm1.0}$

OUR AVERAGE

$410.5$ $\pm1.1$ $\pm0.8$

171k

BEL2

${{\mathit e}^{+}}{{\mathit e}^{-}}$ at ${{\mathit \Upsilon}{(4S)}}$

$409.6$ $\pm1.1$ $\pm1.5$

210k

FOCS

${{\mathit \gamma}}$ nucleus, $\approx{}$180 GeV

$407.9$ $\pm6.0$ $\pm4.3$

10k

SELX

${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ , ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$413$ $\pm3$ $\pm4$

35k

E791

${{\mathit K}^{-}}{{\mathit \pi}^{+}}$

$408.5$ $\pm4.1$ ${}^{+3.5}_{-3.4}$

25k

CLE2

${{\mathit e}^{+}}{{\mathit e}^{-}}$ $\approx{}{{\mathit \Upsilon}{(4S)}}$

$413$ $\pm4$ $\pm3$

16k

E687

${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ , ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

• • We do not use the following data for averages, fits, limits, etc. • •

$424$ $\pm11$ $\pm7$

5118

E687

${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ , ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$417$ $\pm18$ $\pm15$

890

NA14

${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ , ${{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$

$388$ ${}^{+23}_{-21}$

641

ACCM

${{\mathit \pi}^{-}}{}^{}\mathrm {Cu}$ 230 GeV

$480$ $\pm40$ $\pm30$

776

ARG

${{\mathit e}^{+}}{{\mathit e}^{-}}$ 10 GeV

$422$ $\pm8$ $\pm10$

4212

E691

Photoproduction

$420$ $\pm50$

90

ACCM

${{\mathit K}^{-}}$ and ${{\mathit \pi}^{-}}$ 200 GeV

¹	ABUDINEN 2021A determines the lifetime ratio $\tau ({{\mathit D}^{+}})/\tau ({{\mathit D}^{0}}$) = $2.510$ $\pm0.013$ $\pm0.007$.

²	BARLAG 1990C estimate systematic error to be negligible.

References:

PRL 127 211801

Precise measurement of the $D^0$ and $D^+$ lifetimes at Belle II

PL B537 192

New Measurements of the ${{\mathit D}^{0}}$ and ${{\mathit D}^{+}}$ Lifetimes

PRL 86 5243

Precision Measurements of the ${{\mathit \Lambda}_{{c}}^{+}}$ and ${{\mathit D}^{0}}$ Lifetimes

PRL 83 32

Measurements of Lifetimes and a Limit on the Lifetime Difference in the Neutral ${{\mathit D}}$ Meson System

PRL 82 4586

Measurement of Charm Meson Lifetimes

PL B323 459

Precise Measurements of the ${{\mathit D}^{0}}$ and ${{\mathit D}^{+}}$ Meson Lifetimes

PL B263 584

Measurement of the ${{\mathit D}^{0}}$ and ${{\mathit D}^{+}}$ Lifetimes

ZPHY C47 539

Lifetime Measurements of the ${{\mathit D}^{+}}$, ${{\mathit D}^{0}}$, ${{\mathit D}_{{s}}^{+}}$, and ${{\mathit \Lambda}_{{c}}^{+}}$ Charmed Particles

ZPHY C46 563

Measurement of the Masses and Lifetimes of the Charmed Mesons ${{\mathit D}^{0}}$, ${{\mathit D}^{+}}$ and ${{\mathit D}_{{s}}^{-}}$

PL B210 267

Lifetimes of Charmed Mesons

PR D37 2391

Measurement of the ${{\mathit D}^{0}}$, ${{\mathit D}^{+}}$, and ${{\mathit D}_{{s}}^{+}}$ Lifetime

ZPHY C37 17

Lifetimes of Charged and Neutral ${{\mathit D}}$ Mesons

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