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Search for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb data
We report on the measurement of the well-established $CP$ violation in $B^0 \to J/\psi K^0_S$ decays. We perform a time-dependent analysis of the decays reconstructed in 35 pb$^{-1}$ of LHCb data that was taken in 2010. We measure the $CP$ asymmetry parameter $S_{J/\psi K^0_s}$, which is connected t...
| Autor principal: | |
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| Lenguaje: | eng |
| Publicado: |
2011
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| Acceso en línea: | http://cds.cern.ch/record/1328958 |
| _version_ | 1780921708794871808 |
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| author | The LHCb Collaboration |
| author_facet | The LHCb Collaboration |
| author_sort | The LHCb Collaboration |
| collection | CERN |
| description | We report on the measurement of the well-established $CP$ violation in $B^0 \to J/\psi K^0_S$ decays. We perform a time-dependent analysis of the decays reconstructed in 35 pb$^{-1}$ of LHCb data that was taken in 2010. We measure the $CP$ asymmetry parameter $S_{J/\psi K^0_s}$, which is connected to the CKM angle $\beta$ through $S_{J/\psi K^0_s}$ = sin 2$\beta$, neglecting $CP$ violation in $B^0-\bar{B}^0$ mixing and decay. We find $S_{J/\psi K^0_s}$ = 0.53$^{+0.28}_{-0.29}$ (stat) $\pm$ 0.05 (syst). |
| id | cern-1328958 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2011 |
| record_format | invenio |
| spelling | cern-13289582019-09-30T06:29:59Zhttp://cds.cern.ch/record/1328958engThe LHCb CollaborationSearch for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb dataParticle Physics - ExperimentWe report on the measurement of the well-established $CP$ violation in $B^0 \to J/\psi K^0_S$ decays. We perform a time-dependent analysis of the decays reconstructed in 35 pb$^{-1}$ of LHCb data that was taken in 2010. We measure the $CP$ asymmetry parameter $S_{J/\psi K^0_s}$, which is connected to the CKM angle $\beta$ through $S_{J/\psi K^0_s}$ = sin 2$\beta$, neglecting $CP$ violation in $B^0-\bar{B}^0$ mixing and decay. We find $S_{J/\psi K^0_s}$ = 0.53$^{+0.28}_{-0.29}$ (stat) $\pm$ 0.05 (syst).LHCb-CONF-2011-004CERN-LHCb-CONF-2011-004oai:cds.cern.ch:13289582011-06-08 |
| spellingShingle | Particle Physics - Experiment The LHCb Collaboration Search for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb data |
| title | Search for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb data |
| title_full | Search for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb data |
| title_fullStr | Search for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb data |
| title_full_unstemmed | Search for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb data |
| title_short | Search for $CP$ violation in $B^0 \to J/\psi K^0_S$ decays with first LHCb data |
| title_sort | search for $cp$ violation in $b^0 \to j/\psi k^0_s$ decays with first lhcb data |
| topic | Particle Physics - Experiment |
| url | http://cds.cern.ch/record/1328958 |
| work_keys_str_mv | AT thelhcbcollaboration searchforcpviolationinb0tojpsik0sdecayswithfirstlhcbdata |