We have measured the absolute branching ratio of the K+â Ï+Ï0(γ) decay, using â¼20 million tagged K+mesons collected with the KLOE detector at DAΦNE, the Frascati Ïsymbol-factory. Signal counts are obtained from the fit of the distribution of the momentum of the charged decay particle in the kaon rest frame. The result, inclusive of final-state radiation, is BR (K+â Ï+Ï0(γ)) = 0.2065 ± 0.0005stat± 0.0008syst. © 2008 Elsevier B.V. All rights reserved.
Measurement of the absolute branching ratio of the K+â Ï+Ï0(γ) decay with the KLOE detector
Di Donato, C.;
2008-01-01
Abstract
We have measured the absolute branching ratio of the K+â Ï+Ï0(γ) decay, using â¼20 million tagged K+mesons collected with the KLOE detector at DAΦNE, the Frascati Ïsymbol-factory. Signal counts are obtained from the fit of the distribution of the momentum of the charged decay particle in the kaon rest frame. The result, inclusive of final-state radiation, is BR (K+â Ï+Ï0(γ)) = 0.2065 ± 0.0005stat± 0.0008syst. © 2008 Elsevier B.V. All rights reserved.File in questo prodotto:
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