Four-fermion events have been selected in a data sample of 5.8 pb-1 collected with the aleph detector at centre-of-mass energies of 130 and 136 GeV. The final states l+l-qq,l+l-l+l- , ννqq, and ννl+l- have been examined. Five events are observed in the data, in agreement with the Standard Model predictions of 6.67 +/- 0.38 events from four-fermion processes and 0.14 + 0.19- 0.05 from background processes.
Four-fermion production in e+e− collisions at centre-of-mass energies of 130 and 136 GeV
GREGORIO, ANNA;BOSISIO, LUCIANO;GIANNINI, GIANROSSANO;
1996-01-01
Abstract
Four-fermion events have been selected in a data sample of 5.8 pb-1 collected with the aleph detector at centre-of-mass energies of 130 and 136 GeV. The final states l+l-qq,l+l-l+l- , ννqq, and ννl+l- have been examined. Five events are observed in the data, in agreement with the Standard Model predictions of 6.67 +/- 0.38 events from four-fermion processes and 0.14 + 0.19- 0.05 from background processes.File in questo prodotto:
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