Measurement of the mixing parameter in DELPHI (original) (raw)

Maurizio Bonesini

1994, Physics Letters B

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17 pages

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A total of about 900.000 Z 0 ! q q decays have been analyzed to measure the B 0 B 0 mixing probability. T w o dierent b tagging techniques have been used: events with two leptons and events with one lepton and one. From a combination of the two methods the average mixing parameter, , w as determined to be (12:1 1:6(stat:) 0:4(syst:) 0:4(model))%.