Angular analysis of the B0 d ! K0 + decay with the ATLAS experiment.
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An angular analysis of B0 d ! K0(! K+ ��) + �� is presented using 20:3 fb��1 of pp collision data collected at p s = 8 TeV with the ATLAS experiment. The angular observables FL and S3;4;5;7;8 were extracted in six bins of q2, the invariant mass squared of the dimuon system, within the full range 0:04 < q2 < 6:00 (GeV=c2)2. The observables were determined from an unbinned maximum likelihood t using four folded parameterisations of the full angular distribution. The t results were used to obtain corresponding values for the optimised observables P1 and P0 4;5;6;8. The results presented are compatible with Standard Model predictions.
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