A more precise determination of the B0-B0BAR mixing parameter in Z0 decays based on a fourfold increase in statistics has been made using the 1990 and 1991 L3 data. The analysis of the dilepton events, muons and electrons, gives: chi(B) = 0. 121 +/- 0.017 (stat) +/- 0.006 (sys). Using the value of chi(d) measured at the UPSILON(4S) we derive the following limit for chi(s): chi(S) > 0.16 (90% CL).

An Improved Measurement of B(0)-(b)bar(0) Mixing In Z(0) Decays

SANTOCCHIA, Attilio;FIANDRINI, Emanuele;BERTUCCI, Bruna;PAULUZZI, Michele
1992

Abstract

A more precise determination of the B0-B0BAR mixing parameter in Z0 decays based on a fourfold increase in statistics has been made using the 1990 and 1991 L3 data. The analysis of the dilepton events, muons and electrons, gives: chi(B) = 0. 121 +/- 0.017 (stat) +/- 0.006 (sys). Using the value of chi(d) measured at the UPSILON(4S) we derive the following limit for chi(s): chi(S) > 0.16 (90% CL).
1992
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/1026302
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