Search for $D^{0} - {\bar{D}}^{0}$ mixing using semileptonic decays at Belle

4 October 2005

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 72 (7) , 071101
https://doi.org/10.1103/physrevd.72.071101

Abstract

A search for mixing in the neutral

D

meson system has been performed using semileptonic

D^{0} \to K^{(*) -} e^{+} ν

decays. Neutral

D

mesons from

D^{* +} \to D^{0} π^{+}

decays are used; the flavor at production is tagged by the charge of the slow pion. The measurement is performed using

253 {fb}^{- 1}

of data recorded by the Belle detector. From the yield of right-sign and wrong-sign decays arising from nonmixed and mixed events, respectively, we estimate the upper limit of the time-integrated mixing rate to be

r_{D} < 1.0 \times 10^{- 3}

90 %

C.L.

Keywords

PARTICLE PHYSICS

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This publication has 12 references indexed in Scilit:

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Search forD0−D¯0mixing using semileptonic decays at Belle

Abstract

Keywords

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Search for $D^{0} - {\bar{D}}^{0}$ mixing using semileptonic decays at Belle