B_s --> D_(s)h(h)(h) Decays in LHCb

2011/09/25 by Steven Blusk, Blusk, Steven
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph

paper · pdf · doi:10.48550/arxiv.1109.5376

7 pages, 4 figures; Proceedings of BEAUTY 2011, 13th International Conference on B-Physics at Hadron Machines, April 4th-8th 2011, Amsterdam, The Netherlands

arxiv created 2011/09/25 · arxiv updated 2019/08/13

Abstract

We report recent measurements from LHCb on B_(s)→ D_(s)h(h)(h) decays using ∼35 pb^-1 of data collected in 2010. In brief, we measure the following ratios of branching fractions: B(B⁰-bar --> D⁺K^-) / B(B0-bar --> D⁺ pi^-) = 0.0752 +- 0.0064 +- 0.0026 B(B_s-bar --> D⁰ K^*0) / B(B⁰-bar --> D⁰ rho⁰) = 1.39 +- 0.31 +- 0.17 +- 0.18 B(B⁰-bar --> D⁺ K^- pi⁺ pi^-) / B(B⁰-bar --> D⁺ pi^- pi⁺ pi^-) = 0.052 +- 0.009 +- 0.005 B(B^- --> D⁰ K^- pi⁺ pi^-) / B(B^- --> D⁰ pi^- pi⁺ pi^-) = 0.096 +- 0.015 +- 0.008, where the uncertainties are statistical and systematic, respectively. The first of these measurements is the most precise to date, and the others are first observations.

Related

• Weak decays of B_s to D_s based on the helicity analysis
• Improved branching-fraction measurements of B⁰_(s) → K_S⁰ h⁺ h^'- decays and first observation of B⁰_s → K_S⁰ K⁺ K^-
• Measurement of ϕ_s and ΔΓ_s at LHCb
• Measurement of theBs0→μ+μ−Branching Fraction and Search forB0→μ+μ−Decays at the LHCb Experiment
• Measurement of γ from B->Dh decays at LHCb---including the effect of D0-D0bar mixing