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Observation of Bs0->ψ(2S)ϕ and Measurement of the Ratio of Branching Fractions B(Bs0->ψ(2S)ϕ)/B(Bs0->J/ψϕ)

CollaborationWith : Campanelli, Mario / Clark, Allan Geoffrey / Donega, Mauro / Lister, Alison / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review Letters. 2006, vol. 96, no. 23, p. 231801
Abstract We report the first observation of B0s→ψ(2S)ϕ decay in pp¯ collisions at s√=1.96  TeV using 360  pb−1 of data collected by the CDF II detector at the Fermilab Tevatron. We observe 20.2±5.0 and 12.3±4.1 B0s→ψ(2S)ϕ candidates, in ψ(2S)→μ+μ− and ψ(2S)→J/ψπ+π− decay modes, respectively. We present a measurement of the relative branching fraction B(B0s→ψ(2S)ϕ)/B(B0s→J/ψϕ)=0.52±0.13(stat)±0.04(syst)±0.06(BR) using the ψ(2S)→μ+μ− decay mode.
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CDF COLLABORATION. Observation of Bs0->ψ(2S)ϕ and Measurement of the Ratio of Branching Fractions B(Bs0->ψ(2S)ϕ)/B(Bs0->J/ψϕ). In: Physical Review Letters, 2006, vol. 96, n° 23, p. 231801. https://archive-ouverte.unige.ch/unige:38338

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Deposited on : 2014-06-30

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