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Studies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$
We study decays of beauty baryons to the $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ final states with the data collected by LHCb in March-June 2011. We present the first observation of the Cabibbo-suppressed decay $\Lambda^0_b \to D^{0}pK^{-}$ that can be used to measure the angle of $\gamma$ of the CKM unit...
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| Lenguaje: | eng |
| Publicado: |
2011
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| Acceso en línea: | http://cds.cern.ch/record/1366695 |
| _version_ | 1780922767183446016 |
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| author | The LHCb Collaboration |
| author_facet | The LHCb Collaboration |
| author_sort | The LHCb Collaboration |
| collection | CERN |
| description | We study decays of beauty baryons to the $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ final states with the data collected by LHCb in March-June 2011. We present the first observation of the Cabibbo-suppressed decay $\Lambda^0_b \to D^{0}pK^{-}$ that can be used to measure the angle of $\gamma$ of the CKM unitarity triangle. The ratio of branching fractions is measured: $\cal{B}(\Lambda^0_b \to D^{0}pK^{-})/\cal{B}(\Lambda^0_b \to D^{0}p\pi^{-})$ = 0.112 $\pm$ 0.019$^{+0.011}_{-0.014}$. We also find a hint, with 2.6$\sigma$ significance, of the neutral beauty-strange baryon $\Xi_b^0$ reconstructed in the exclusive final state $D^{0}pK^{-}$ |
| id | cern-1366695 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2011 |
| record_format | invenio |
| spelling | cern-13666952019-09-30T06:29:59Zhttp://cds.cern.ch/record/1366695engThe LHCb CollaborationStudies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$Particle Physics - ExperimentWe study decays of beauty baryons to the $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ final states with the data collected by LHCb in March-June 2011. We present the first observation of the Cabibbo-suppressed decay $\Lambda^0_b \to D^{0}pK^{-}$ that can be used to measure the angle of $\gamma$ of the CKM unitarity triangle. The ratio of branching fractions is measured: $\cal{B}(\Lambda^0_b \to D^{0}pK^{-})/\cal{B}(\Lambda^0_b \to D^{0}p\pi^{-})$ = 0.112 $\pm$ 0.019$^{+0.011}_{-0.014}$. We also find a hint, with 2.6$\sigma$ significance, of the neutral beauty-strange baryon $\Xi_b^0$ reconstructed in the exclusive final state $D^{0}pK^{-}$LHCb-CONF-2011-036CERN-LHCb-CONF-2011-036oai:cds.cern.ch:13666952011-07-12 |
| spellingShingle | Particle Physics - Experiment The LHCb Collaboration Studies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ |
| title | Studies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ |
| title_full | Studies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ |
| title_fullStr | Studies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ |
| title_full_unstemmed | Studies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ |
| title_short | Studies of beauty baryons decaying to $D^{0}p\pi^{-}$ and $D^{0}pK^{-}$ |
| title_sort | studies of beauty baryons decaying to $d^{0}p\pi^{-}$ and $d^{0}pk^{-}$ |
| topic | Particle Physics - Experiment |
| url | http://cds.cern.ch/record/1366695 |
| work_keys_str_mv | AT thelhcbcollaboration studiesofbeautybaryonsdecayingtod0ppiandd0pk |