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 / Ambrosino, F.; Corvino, M.; Massarotti, P.; Mirra, M.; Napolitano, M.; Saracino, G.. - (2007). (Intervento presentato al convegno 23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007 tenutosi a Daegu, kor nel 2007).
KLOE measurement of the charged kaon absolute semileptonic BR's
Ambrosino F.;Corvino M.;Massarotti P.;Napolitano M.;Saracino G.
2007
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
