Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2011-12-14
Physics
High Energy Physics
High Energy Physics - Experiment
11 pages, 5 figures. Submitted Phys. Rev. D
Scientific paper
We report an analysis of the $\Lambda^0_b\rightarrow\Lambda^+_c\pi^-\pi^+\pi^-$ decay in a data sample collected by the CDF II detector at the Fermilab Tevatron corresponding to 2.4 fb$^{-1}$ of integrated luminosity. We reconstruct the currently largest samples of the decay modes $\Lambda^0_b\rightarrow \Lambda_c(2595)^+\pi^-$ (with $\Lambda_c(2595)^+\rightarrow\Lambda^+_c\pi^+\pi^-$), $\Lambda^0_b\rightarrow \Lambda_c(2625)^+\pi^-$ (with $\Lambda_c(2625)^+\rightarrow\Lambda^+_c\pi^+\pi^-$), $\Lambda^0_b\rightarrow \Sigma_c(2455)^{++}\pi^-\pi^-$ (with $\Sigma_c(2455)^{++}\rightarrow\Lambda^+_c\pi^+$), and $\Lambda^0_b\rightarrow \Sigma_c(2455)^0\pi^+\pi^-$ (with $\Sigma_c(2455)^0\rightarrow\Lambda^+_c \pi^-$) and measure the branching fractions relative to the $\Lambda^0_b\rightarrow\Lambda^+_c\pi^-$ branching fraction. We measure the ratio $\BR(\Lambda^0_b\rightarrow \Lambda^+_c\pi^-\pi^+\pi^-) /\BR(\Lambda^0_b\rightarrow \Lambda^+_c \pi^-) = 3.04 \pm 0.33(\text{stat})^{+0.70}_{-0.55}(\text{syst})$ which is used to derive $\BR(\Lambda^0_b\rightarrow \Lambda^+_c\pi^-\pi^+\pi^-)= (26.8^{+11.9}_{-11.2})\times10^{-3}$.
Aaltonen Timo
for the CDF Collaboration
No associations
LandOfFree
Measurement of the branching fraction ${\mathcal{B}}(Λ^0_b\rightarrow Λ^+_cπ^-π^+π^-)$ at CDF does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Measurement of the branching fraction ${\mathcal{B}}(Λ^0_b\rightarrow Λ^+_cπ^-π^+π^-)$ at CDF, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of the branching fraction ${\mathcal{B}}(Λ^0_b\rightarrow Λ^+_cπ^-π^+π^-)$ at CDF will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-561109