From 56 days of data taking in 2002, the NA48/1 experiment observed 6316 Ksi0> Sigma+ e- nubar candidates (with the subsequent Sigma+ -> p pi0 decay) and 555 anti-Ksi0 -> anti-Sigma+ e+ nu candidates with background contamination of 215±44 and 136±8 events, respectively. From these samples, the branching ratios were measured allowing the determination of the CKM matrix element |Vus|.
Measurement of the branching ratios of the decays Ξ0 → Σ+ e- over(ν, ̄)e and over(Ξ0, -) → over(Σ+, -) e+ νe
Norton A.;Dalpiaz P.;Petrucci F.;Savrie M.;Cenci P.;Clemencic M.;
2007
Abstract
From 56 days of data taking in 2002, the NA48/1 experiment observed 6316 Ksi0> Sigma+ e- nubar candidates (with the subsequent Sigma+ -> p pi0 decay) and 555 anti-Ksi0 -> anti-Sigma+ e+ nu candidates with background contamination of 215±44 and 136±8 events, respectively. From these samples, the branching ratios were measured allowing the determination of the CKM matrix element |Vus|.File in questo prodotto:
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