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# Measurement of the branching fraction for $d^0 \rightarrow K^-\pi^+$

Abstract : The branching fraction for D0 -> K- pi+ 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 D*+ -> D0 pi+, D0 -> K- pi+ decay chain and the rate for inclusive soft pion production at low transverse momentum with respect to the nearest jet. The result found is B(D0 -> K- pi+) = (3.90 +- 0.09 +- 0.12)%
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Journal articles
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Cited literature [4 references]

http://hal.in2p3.fr/in2p3-00010780
Contributor : Hélène Kerec Connect in order to contact the contributor
Submitted on : Friday, March 12, 1999 - 9:39:20 AM
Last modification on : Tuesday, April 20, 2021 - 12:00:05 PM
Long-term archiving on: : Tuesday, June 2, 2015 - 12:12:24 PM

### Identifiers

• HAL Id : in2p3-00010780, version 1

### Citation

R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, et al.. Measurement of the branching fraction for $d^0 \rightarrow K^-\pi^+$. Physics Letters B, Elsevier, 1997, 403, pp.367-376. ⟨in2p3-00010780⟩

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