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Observation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHC
The production of $B_d^0$ mesons is observed with the ATLAS experiment at the LHC through their decays to $B_d^0 \to J/\psi(\mu^+\mu^-) K^0_S(\pi^+\pi^-)$. The decays are reconstructed in 40 pb$^{-1}$ of data taken in 2010 and the mass distribution obtained is fitted using an unbinned maximum likeli...
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| Lenguaje: | eng |
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2011
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| Acceso en línea: | http://cds.cern.ch/record/1369830 |
| _version_ | 1780922846821744640 |
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| author | The ATLAS collaboration |
| author_facet | The ATLAS collaboration |
| author_sort | The ATLAS collaboration |
| collection | CERN |
| description | The production of $B_d^0$ mesons is observed with the ATLAS experiment at the LHC through their decays to $B_d^0 \to J/\psi(\mu^+\mu^-) K^0_S(\pi^+\pi^-)$. The decays are reconstructed in 40 pb$^{-1}$ of data taken in 2010 and the mass distribution obtained is fitted using an unbinned maximum likelihood fit. The mass fit yields $616 \pm 30(\rm stat.)$ signal events. The fitted $B_d^0$ mass value, $M = 5279.7 \pm 1.0(\rm stat.)$ MeV, is consistent with the world average value, $M_{B^0} = 5279.50 \pm 0.30$ MeV. |
| id | cern-1369830 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2011 |
| record_format | invenio |
| spelling | cern-13698302021-04-18T19:37:15Zhttp://cds.cern.ch/record/1369830engThe ATLAS collaborationObservation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHCDetectors and Experimental TechniquesThe production of $B_d^0$ mesons is observed with the ATLAS experiment at the LHC through their decays to $B_d^0 \to J/\psi(\mu^+\mu^-) K^0_S(\pi^+\pi^-)$. The decays are reconstructed in 40 pb$^{-1}$ of data taken in 2010 and the mass distribution obtained is fitted using an unbinned maximum likelihood fit. The mass fit yields $616 \pm 30(\rm stat.)$ signal events. The fitted $B_d^0$ mass value, $M = 5279.7 \pm 1.0(\rm stat.)$ MeV, is consistent with the world average value, $M_{B^0} = 5279.50 \pm 0.30$ MeV.ATLAS-CONF-2011-105oai:cds.cern.ch:13698302011-07-22 |
| spellingShingle | Detectors and Experimental Techniques The ATLAS collaboration Observation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHC |
| title | Observation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHC |
| title_full | Observation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHC |
| title_fullStr | Observation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHC |
| title_full_unstemmed | Observation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHC |
| title_short | Observation of the decay $B^0_d \to J/\psi (\mu^+\mu^-) K^0_S (\pi^+\pi^-) $ with the ATLAS experiment at the LHC |
| title_sort | observation of the decay $b^0_d \to j/\psi (\mu^+\mu^-) k^0_s (\pi^+\pi^-) $ with the atlas experiment at the lhc |
| topic | Detectors and Experimental Techniques |
| url | http://cds.cern.ch/record/1369830 |
| work_keys_str_mv | AT theatlascollaboration observationofthedecayb0dtojpsimumuk0spipiwiththeatlasexperimentatthelhc |