${{\mathit c}}$-quark decays

$\Gamma\mathrm {({{\mathit c}} \rightarrow {{\mathit \mu}^{+}} anything)}/\Gamma\mathrm {({{\mathit c}} \rightarrow anything)}$

INSPIRE   JSON  (beta) PDGID:
S031R6
For the Summary Table, we only use the average of ${{\mathit e}^{+}}$ and ${{\mathit \mu}^{+}}$ measurements from ${{\mathit Z}^{0}}$ $\rightarrow$ ${{\mathit c}}{{\overline{\mathit c}}}$ decays; see the next data block.

VALUE EVTS DOCUMENT ID TECN  COMMENT
$\bf{ 0.082 \pm0.005}$ OUR AVERAGE
$0.073$ $\pm0.008$ $\pm0.002$ 73
KAYIS-TOPAKSU
2005
CHRS ${{\mathit \nu}_{{{\mu}}}}$ emulsion
$0.095$ $\pm0.007$ ${}^{+0.014}_{-0.013}$ 2829
ASTIER
2000D
 NOMD ${{\mathit \nu}_{{{\mu}}}}$ ${}^{}\mathrm {Fe}$ $\rightarrow$ ${{\mathit \mu}^{-}}{{\mathit \mu}^{+}}$ X
$0.090$ $\pm0.007$ ${}^{+0.007}_{-0.006}$ 476 1
ABBIENDI
1999K
 OPAL ${{\mathit Z}^{0}}$ $\rightarrow$ ${{\mathit c}}{{\overline{\mathit c}}}$
$0.086$ $\pm0.017$ ${}^{+0.008}_{-0.007}$ 69 2
ALBRECHT
1992F
 ARG ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $\approx{}$ 10 GeV
$0.078$ $\pm0.009$ $\pm0.012$
ONG
1988
MRK2 ${{\mathit e}^{+}}{{\mathit e}^{-}}$ 29 GeV
$0.078$ $\pm0.015$ $\pm0.02$
BARTEL
1987
JADE ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $34.6$ GeV
$0.082$ $\pm0.012$ ${}^{+0.02}_{-0.01}$
ALTHOFF
1984G
 TASS ${{\mathit e}^{+}}{{\mathit e}^{-}}$ $34.5$ GeV
• • We do not use the following data for averages, fits, limits, etc. • •
$0.093$ $\pm0.009$ $\pm0.009$ 88
KAYIS-TOPAKSU
2002
CHRS See KAYIS-TOPAKSU 2005
$0.089$ $\pm0.018$ $\pm0.025$
BARTEL
1985J
 JADE See BARTEL 1987
1  ABBIENDI 1999K uses the excess of right-sign over wrong-sign leptons opposite reconstructed ${{\mathit D}^{*}{(2010)}^{+}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}$ decays in ${{\mathit Z}^{0}}$ $\rightarrow$ ${{\mathit c}}{{\overline{\mathit c}}}$.
2  ALBRECHT 1992F uses the excess of right-sign over wrong-sign leptons in a sample of events tagged by fully reconstructed ${{\mathit D}^{*}{(2010)}^{+}}$ $\rightarrow$ ${{\mathit D}^{0}}{{\mathit \pi}^{+}}$ decays.
References