pdgLive

D^{0}

\to

K^{-} π^{+}

Decay Mode Summary INSPIRE PDGID:

	Mode ^()*		Fraction ( $Γ_{i}$ / $Γ$ )	Scale Factor/ Conf. Level	P(MeV/c)


$Γ_{38}$	$D^{0}$ $\to$ $K^{-} π^{+}$		( $3.947$ $\pm 0.030$ ) $\times 10^{- 2}$	S=1.2	861

Category:

Hadronic modes with one

\overset{―}{K}

The following data is related to the above value:

▸ expand all datablocks

Γ (

D^{0}

\to

K^{-} μ^{+} ν_{μ}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{21} / Γ_{38}

Γ (

D^{0}

\to

π^{-} e^{+} ν_{e}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{31} / Γ_{38}

Γ (

D^{0}

\to

K^{-} π^{+}) / Γ_{total}

Γ_{38} / Γ

Γ (

D^{0}

\to

K_{S}^{0}

π^{0}) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{39} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

K_{S}^{0}

π^{+} π^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{44} / Γ_{38}

Γ (

D^{0}

\to

K^{-} π^{+} π^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{59} / Γ_{38}

Γ (

D^{0}

\to

K^{-}

π^{+} π^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{78} / Γ_{38}

Γ (

D^{0}

\to

K^{-}

π^{+} π^{-} π^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{95} / Γ_{38}

Γ (

D^{0}

\to

K^{-} π^{+} ω) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{98} / Γ_{38}

Γ (

D^{0}

\to

{\overset{―}{K}}^{*} {(892)}^{0} ω) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{99} / Γ_{38}

Γ (

D^{0}

\to

K^{-} π^{+} η) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{104} / Γ_{38}

Γ (

D^{0}

\to

K_{S}^{0}

η) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{118} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

K_{S}^{0}

ω) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{119} / Γ_{38}

Γ (

D^{0}

\to

K_{S}^{0}

η^{^{'}} (958)) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{120} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

{\overset{―}{K}}^{*} {(892)}^{0} η) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{122} / Γ_{38}

Γ (

D^{0}

\to

π^{+} π^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{141} / Γ_{38}

Γ (

D^{0}

\to

π^{+} π^{-}) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{141} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

π^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{142} / Γ_{38}

Γ (

D^{0}

\to

π^{0}) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{142} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

π^{+} π^{-} π^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{143} / Γ_{38}

Γ (

D^{0}

\to

π^{+}

π^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{161} / Γ_{38}

Γ (

D^{0}

\to

π^{+} π^{-}

π^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{188} / Γ_{38}

Γ (

D^{0}

\to

η π^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{190} / Γ_{38}

Γ (

D^{0}

\to

η π^{0}) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{190} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

π^{+}

π^{-} π^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{193} / Γ_{38}

Γ (

D^{0}

\to

ω π^{+} π^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{197} / Γ_{38}

Γ (

D^{0}

\to

η^{^{'}} (958) π^{0}) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{204} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

η) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{206} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

η η^{^{'}} (958)) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{210} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

K^{+} K^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{211} / Γ_{38}

Γ (

D^{0}

\to

K^{+} K^{-}) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{211} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

K_{S}^{0}

) / [Γ (

D^{0}

\to

K^{-} π^{+})

Γ (

D^{0}

\to

K^{+} π^{-})]

Γ_{212} / (Γ_{38}

Γ_{289}

Γ (

D^{0}

\to

K_{S}^{0}

K^{-} π^{+}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{213} / Γ_{38}

Γ (

D^{0}

\to

K_{S}^{0}

K^{+} π^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{224} / Γ_{38}

Γ (

D^{0}

\to

ϕ γ) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{285} / Γ_{38}

Γ (

D^{0}

\to

{\overset{―}{K}}^{*} {(892)}^{0} γ) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{286} / Γ_{38}

Γ (

D^{0}

\to

K^{+} π^{-}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{289} / Γ_{38}

Γ (

D^{0}

\to

K^{+} π^{-}

) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{290} / Γ_{38}

Γ (

D^{0}

\to

K^{+} π^{-}

{\overset{―}{D}}^{0}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{291} / Γ_{38}

Γ (

D^{0}

\to

K^{-} e^{+} ν_{e}) / Γ (

D^{0}

\to

K^{-} π^{+})

Γ_{20} / Γ_{38}

VALUE

EVTS

DOCUMENT ID

TECN

COMMENT

0.899 \pm 0.009

OUR FIT Error includes scale factor of 1.3.

0.930 \pm 0.013

OUR AVERAGE

0.927

\pm 0.007

\pm 0.012

76k

\pm 323

BABR

e^{+} e^{-}

\approx Υ (4 S)

0.978

\pm 0.027

\pm 0.044

2510

CLE2

e^{+} e^{-}

\approx Υ (4 S)

0.90

\pm 0.06

\pm 0.06

584

CLEO

e^{+} e^{-}

\approx

10.5

GeV

0.91

\pm 0.07

\pm 0.11

250

E691

Photoproduction

¹	The event samples in this AUBERT 2007BG result include radiative photons. The $D^{0}$ $\to$ $K^{-} e^{+} ν_{e}$ form factor at $q^{2}$ = 0 is $f_{+}$ (0) = $0.727$ $\pm 0.007$ $\pm 0.005$ $\pm 0.007$ .

²	BEAN 1993C uses $K^{-} μ^{+} ν_{μ}$ as well as $K^{-} e^{+} ν_{e}$ events and makes a small phase-space adjustment to the number of the $μ^{+}$ events to use them as $e^{+}$ events. A pole mass of $2.00$ $\pm 0.12$ $\pm 0.18$ GeV/ $c^{2}$ is obtained from the $q^{2}$ dependence of the decay rate.

³	CRAWFORD 1991B uses $K^{-} e^{+} ν_{e}$ and $K^{-} μ^{+} ν_{μ}$ candidates to measure a pole mass of $2.1$ $_{- 0.2}^{+ 0.4}_{- 0.2}^{+ 0.3}$ GeV/ $c^{2}$ from the $q^{2}$ dependence of the decay rate.

⁴	ANJOS 1989F measures a pole mass of $2.1$ $_{- 0.2}^{+ 0.4}$ $\pm 0.2$ GeV/ $c^{2}$ from the $q^{2}$ dependence of the decay rate.

PR D76 052005

Measurement of the Hadronic Form Factor in

D^{0}

\to

K^{-} e^{+} ν_{e}

Decays

PL B317 647

Measurement of Exclusive Semileptonic Decays of

D

Mesons

PR D44 3394

Measurement of the Ratio B(

D^{0}

\to

K^{*} e^{+} ν_{e}

)/B(

D^{0}

\to

K^{-} e^{+} ν_{e}

)

PRL 62 1587

A Study of the Semileptonic Decay Mode

D^{0}

\to

K^{-} e^{+} ν_{e}

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