A total of about 900000 Z0 --> qqBAR decays have been analyzed to measure the B0 - B0BAR mixing probability. Two different b tagging techniques have been used: events with two leptons and events with one lepton and one LAMBDA. From a combination of the two methods the average mixing parameter, chi, was determined to be (12.1 +/- 1.6(stat.) +/- 0.4(syst.) +/- 0.4(model))%.
Measurement of the B-0-(B)over-bar-0 mixing parameter in DELPHI
CACCIA, MASSIMO;PREST, MICHELA;
1994-01-01
Abstract
A total of about 900000 Z0 --> qqBAR decays have been analyzed to measure the B0 - B0BAR mixing probability. Two different b tagging techniques have been used: events with two leptons and events with one lepton and one LAMBDA. From a combination of the two methods the average mixing parameter, chi, was determined to be (12.1 +/- 1.6(stat.) +/- 0.4(syst.) +/- 0.4(model))%.
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