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Measurement of the Ratios of Branching Fractions B(Bs0 -> Ds-π+π+π−)/B(B0 -> D−π+π+π−) and B(Bs0 -> D−sπ+)/B(B0 -> D−π+)

CollaborationWith : Campanelli, Mario / Clark, Allan Geoffrey / Donega, Mauro / Moed, Shulamit / Sfyrla, Anna / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review Letters. 2007, vol. 98, no. 06, p. 061802
Abstract Using 355  pb−1 of data collected by the CDF II detector in pp¯ collisions at s√=1.96  TeV at the Fermilab Tevatron, we study the fully reconstructed hadronic decays B0(s)→D−(s)π+ and B0(s)→D−(s)π+π+π−. We present the first measurement of the ratio of branching fractions B(B0s→D−sπ+π+π−)/B(B0→D−π+π+π−)=1.05±0.10(stat)±0.22(syst). We also update our measurement of B(B0s→D−sπ+)/B(B0→D−π+) to 1.13±0.08(stat)±0.23(syst), improving the statistical uncertainty by more than a factor of 2. We find B(B0s→D−sπ+)=[3.8±0.3(stat)±1.3(syst)]×10−3 and B(B0s→D−sπ+π+π−)=[8.4±0.8(stat)±3.2(syst)]×10−3.
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CDF COLLABORATION. Measurement of the Ratios of Branching Fractions B(Bs0 -> Ds-π+π+π−)/B(B0 -> D−π+π+π−) and B(Bs0 -> D−sπ+)/B(B0 -> D−π+). In: Physical Review Letters, 2007, vol. 98, n° 06, p. 061802. https://archive-ouverte.unige.ch/unige:38382

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Deposited on : 2014-07-01

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