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New measurement of the K+- --> pi+-mu+mu- decay
New measurement he K+- --> pi+-mu+mu- decay
2011/1/4
A sample of 3120 K± → π±μ+μ− decay candidates with (3.3 ± 0.7)% background contamination has been collected by the NA48/2 experiment at the CERN SPS, allowing a detailed study of the decay prope...
A critical look at V_us determinations from hadronic tau decay data
critical look V_us determinations hadronic tau decay data
2011/1/6
A critical review of hadronic decay data based determinations of |Vus| is given, focussing on the impact of the slow convergence of the integrated D = 2 OPE series for the conventional flavor-breaki...