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Observation of the B± meson in the decay B± → J/ψ (μ+μ−) K± in ATLAS
The production of B± mesons is observed in ATLAS through their decay to J/ψ (μ+μ−)K±, using 3.4 pb−1 of 7 TeV LHC collisions. A total of 283 ± 22(stat.) signal decays are observed after subtracting the background, with a fitted mass of 5283.2 ± 2.5(stat.) MeV. Within the statistical uncertainty, the...
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| Lenguaje: | eng |
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2010
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| Acceso en línea: | http://cds.cern.ch/record/1307530 |