Using 355  pb-1 of data collected by the CDF II detector in pp̅ collisions at √s=1.96  TeV at the Fermilab Tevatron, we study the fully reconstructed hadronic decays B(s)0→D(s)-π+ and B(s)0→D(s)-π+π+π-. We present the first measurement of the ratio of branching fractions B(Bs0→Ds-π+π+π-)/B(B0→D-π+π+π-)=1.05±0.10(stat)±0.22(syst). We also update our measurement of B(Bs0→Ds-π+)/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(Bs0→Ds-π+)=[3.8±0.3(stat)±1.3(syst)]×10-3 and B(Bs0→Ds-π+π+π-)=[8.4±0.8(stat)±3.2(syst)]×10-3.

Aaltonen, T., Alvarez Gonzalezv, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., et al. (2007). Measurement of the Ratios of Branching Fractions B(Bs0→Ds-π+π+π-)/B(B0→D-π+π+π-) and B(Bs0→Ds-π+)/B(B0→D-π+). PHYSICAL REVIEW LETTERS, 98, 061802-1-061802-7 [10.1103/PhysRevLett.98.061802].

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

BRIGLIADORI, LUCA;CASTRO, ANDREA;A. DI CANTO;MOGGI, NICCOLO';MUSSINI, MANUEL;ZUCCHELLI, STEFANO
2007

Abstract

Using 355  pb-1 of data collected by the CDF II detector in pp̅ collisions at √s=1.96  TeV at the Fermilab Tevatron, we study the fully reconstructed hadronic decays B(s)0→D(s)-π+ and B(s)0→D(s)-π+π+π-. We present the first measurement of the ratio of branching fractions B(Bs0→Ds-π+π+π-)/B(B0→D-π+π+π-)=1.05±0.10(stat)±0.22(syst). We also update our measurement of B(Bs0→Ds-π+)/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(Bs0→Ds-π+)=[3.8±0.3(stat)±1.3(syst)]×10-3 and B(Bs0→Ds-π+π+π-)=[8.4±0.8(stat)±3.2(syst)]×10-3.
2007
Aaltonen, T., Alvarez Gonzalezv, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., et al. (2007). Measurement of the Ratios of Branching Fractions B(Bs0→Ds-π+π+π-)/B(B0→D-π+π+π-) and B(Bs0→Ds-π+)/B(B0→D-π+). PHYSICAL REVIEW LETTERS, 98, 061802-1-061802-7 [10.1103/PhysRevLett.98.061802].
Aaltonen, T.; Alvarez Gonzalezv, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Apresyan, A.; Arisaw...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/130341
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