Publication: Observation of the $\Lambda_b^0\rightarrow J/\psi p \pi^-$ decay
Observation of the $\Lambda_b^0\rightarrow J/\psi p \pi^-$ decay
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LHCb Collaboration, Bernet, R., Müller, K., Steinkamp, O., Straumann, U., Serra, N., Vollhardt, A., & et al. (2014). Observation of the $\Lambda_b^0\rightarrow J/\psi p \pi^-$ decay. Journal of High Energy Physics, 2014(103), online. https://doi.org/10.1007/JHEP07(2014)103
Abstract
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Abstract
The first observation of the Cabibbo-suppressed decay $\Lambda_b^0\rightarrow J/\psi p \pi^-$ is reported using a data sample of proton-proton collisions at 7 and 8 TeV, corresponding to an integrated luminosity of 3 $\rm fb^{-1}$. A prominent signal is observed and the branching fraction relative to the decay mode $\Lambda_b^0\rightarrow J/\psi p K^-$ is determined to be $$ \frac{{\cal B}(\Lambda_b^0\rightarrow J/\psi p \pi^-)}{{\cal B}(\Lambda_b^0\rightarrow J/\psi p K^-)}=0.0824\pm0.0025:(\text{stat})\pm0.0042:(\text{syst}). $$
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- Bernet, R
- Müller, K
- Steinkamp, O
- Straumann, U
- Serra, N
- Vollhardt, A
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LHCb Collaboration, Bernet, R., Müller, K., Steinkamp, O., Straumann, U., Serra, N., Vollhardt, A., & et al. (2014). Observation of the $\Lambda_b^0\rightarrow J/\psi p \pi^-$ decay. Journal of High Energy Physics, 2014(103), online. https://doi.org/10.1007/JHEP07(2014)103
