Four-fermion production in $e^+ e^-$ collisions at centre-of-mass energies of 130 and 136 GeV

Mostrar otras versiones (1)

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^- qqbar, l^+l^-l^+l^-, nunubar qqbar, and nunubar l^+l^- have been examined. Five events are observed in the data, in agreement...

Descripción completa

Detalles Bibliográficos
Autores principales: González, S, Hoffmann, C, Nachtman, J, Orejudos, W, Schmitt, M
Lenguaje:eng
Publicado: 1996
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/410051
Descripción
Sumario: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^- qqbar, l^+l^-l^+l^-, nunubar qqbar, and nunubar l^+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.

Ejemplares similares