This paper is devoted to the measurement of the fully inclusive absolute branching ratios of the charged kaon semileptonic decays, K± → π0e±ν(γ) and K± → π0μ±ν (γ). The measurements have been done using a tag technique, employing the two-body decays K± → μ±π and K± → π±π0, and using a sample of about 410 pb-1 collected during the 2001 and 2002 data taking of the KLOE experiment at DA Pdbl NE the Frascati - factory . The results obtained are BR(Ke3) = 0.04965 (38)Stat (37)Syst and BR(Kμ3) = 0.03233 (29)Stat (26)Syst.
KLOE measurement of the charged kaon absolute semileptonic BR's
Martini M;Meola S;
2007-01-01
Abstract
This paper is devoted to the measurement of the fully inclusive absolute branching ratios of the charged kaon semileptonic decays, K± → π0e±ν(γ) and K± → π0μ±ν (γ). The measurements have been done using a tag technique, employing the two-body decays K± → μ±π and K± → π±π0, and using a sample of about 410 pb-1 collected during the 2001 and 2002 data taking of the KLOE experiment at DA Pdbl NE the Frascati - factory . The results obtained are BR(Ke3) = 0.04965 (38)Stat (37)Syst and BR(Kμ3) = 0.03233 (29)Stat (26)Syst.File in questo prodotto:
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