${{\mathit D}_{{{s}}}^{\pm}}$ MEAN LIFE

INSPIRE   PDGID:
S034T
Measurements with an error greater than $100 \times 10^{-15}~$s or with fewer than 100 events have been omitted from the Listings.
VALUE ($ 10^{-15} $ s) EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 501.2 \pm2.2}$ OUR AVERAGE  Error includes scale factor of 1.3.  See the ideogram below.
$499.5$ $\pm1.7$ $\pm0.9$ 116k
ADACHI
2023G
 BEL2 ${{\mathit D}_{{{s}}}^{+}}$ $\rightarrow$ ${{\mathit \phi}}{{\mathit \pi}^{+}}$
$506.4$ $\pm3.0$ $\pm1.7$ $\pm1.7$ 1
AAIJ
2017AN
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$507.4$ $\pm5.5$ $\pm5.1$ 13.6k
LINK
2005J
 FOCS ${{\mathit \Phi}}{{\mathit \pi}^{+}}$ and ${{\overline{\mathit K}}^{*0}}{{\mathit K}^{+}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$472.5$ $\pm17.2$ $\pm6.6$ 760
IORI
2001
SELX 600 GeV ${{\mathit \Sigma}^{-}}$, ${{\mathit \pi}^{-}}$, ${{\mathit p}}$
$518$ $\pm14$ $\pm7$ 1662
AITALA
1999
E791 ${{\mathit \pi}^{-}}$ nucleus, 500 GeV
$486.3$ $\pm15.0$ ${}^{+4.9}_{-5.1}$ 2167 2
BONVICINI
1999
CLE2 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $\approx{}{{\mathit \Upsilon}{(4S)}}$
$475$ $\pm20$ $\pm7$ 900
FRABETTI
1993F
 E687 ${{\mathit \gamma}}{}^{}\mathrm {Be}$, ${{\mathit \phi}}{{\mathit \pi}^{+}}$
$500$ $\pm60$ $\pm30$ 104
FRABETTI
1990
E687 ${{\mathit \gamma}}{}^{}\mathrm {Be}$, ${{\mathit \phi}}{{\mathit \pi}^{+}}$
$470$ $\pm40$ $\pm20$ 228
RAAB
1988
E691 Photoproduction
1  This AAIJ 2017AN value is derived from the difference between the ${{\mathit D}_{{{s}}}^{-}}$ and ${{\mathit D}^{-}}$ widths. The 3rd uncertainty, $\pm{}1.7 \times 10^{-15}$ s, arises from the uncertainty of the ${{\mathit D}^{-}}$ width.
2  BONVICINI 1999 obtains $1.19$ $\pm0.04$ for the ratio of ${{\mathit D}_{{{s}}}^{+}}$ to ${{\mathit D}^{0}}$ lifetimes.

           ${{\mathit D}_{{{s}}}^{\pm}}$ mean life (${10^{-15}}$s)
References