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Measurement of the branching fraction for D0 → K−π+

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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  • ALEPH Collaboration
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<mark>Journal publication date</mark>1997
<mark>Journal</mark>Physics Letters B
Issue number3-4
Volume403
Number of pages10
Pages (from-to)367-376
Publication StatusPublished
<mark>Original language</mark>English

Abstract

The branching fraction for D0 → K−π+ is measured with the statistics collected by ALEPH from 1991 to 1994. The method is based on the comparison between the rate for the reconstructed , D0 → K−π+ decay chain and the rate for inclusive soft pion production at low transverse momentum with respect to the nearest jet. The result is B(D0 → K−π+0 = (3.90 ± 0.09 ± 0.12)%