Title

Measurements of the Branching Fractions for B_(s) -> D_(s)πππ and Λ_b^0 -> Λ_c^+πππ

Author(s)/Creator(s)

Raymond Mountain, Syracuse UniversityFollow
Marina Artuso, Syracuse UniversityFollow
S. Blusk, Syracuse UniversityFollow
Alessandra Borgia, Syracuse UniversityFollow

Document Type

Article

Date

9-30-2011

Language

English

Disciplines

Physics

Description/Abstract

Branching fractions of the decays H_b\to H_c\pi^-\pi^+\pi^- relative to H_b\to H_c\pi^- are presented, where H_b (H_c) represents B^0-bar(D^+), B^- (D^0), B_s^0-bar (D_s^+) and \Lambda_b^0 (\Lambda_c^+). The measurements are performed with the LHCb detector using 35{\rm pb^{-1}} of data collected at \sqrt{s}=7 TeV. The ratios of branching fractions are measured to be B(B^0-bar -> D^+\pi^-\pi^+\pi^-)/ B(B^0-bar -> D^+\pi^-) = 2.38\pm0.11\pm0.21 B(B^- -> D^0\pi^-\pi^+\pi^-) / B(B^- -> D^0\pi^-) = 1.27\pm0.06\pm0.11 B(B_s^0-bar -> D_s^+\pi^-\pi^+\pi^-) / B(B_s^0-bar -> D_s^+\pi^-) = 2.01\pm0.37\pm0.20 B(\Lambda_b^0->\Lambda_c^+\pi^-\pi^+\pi^-) / B(\Lambda_b^0 -> \Lambda_c^+\pi^-) = 1.43\pm0.16\pm0.13. We also report measurements of partial decay rates of these decays to excited charm hadrons. These results are of comparable or higher precision than existing measurements.

Additional Information

26 pages, 9 figures More information at http://arxiv.org/abs/1109.6831

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Recommended Citation

Mountain, Raymond; Artuso, Marina; Blusk, S.; and Borgia, Alessandra, "Measurements of the Branching Fractions for B_(s) -> D_(s)πππ and Λ_b^0 -> Λ_c^+πππ" (2011). Physics - All Scholarship. 368.
https://surface.syr.edu/phy/368

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.