The process e+e - -> l lbar f fbar where l is a charged or a neutral lepton and f any charged fermion, is analyzed. The study uses the ALEPH data collected at LEP from 1989 to 1993 at centre-of-mass energies between 88 and 95 GeV, corresponding to almost two million hadronic Z decays and to a total integrated luminosity of 79 pb^-1. For all channels, the data agree well with the standard model expectation both in shape and normalization. The indication of an excess in the e+e- ->tau+ tau- f fbar channel, reported by ALEPH in 1991, is not confirmed.

D., B., D., C., I., B., D., D., P., G., C., G., et al. (1995). Study of the four-fermion final state at the Z resonance. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 66(1-2), 3-18 [10.1007/BF01496576].

Study of the four-fermion final state at the Z resonance

BOTTIGLI, UBALDO;CIOCCI, MARIA AGNESE;MARROCCHESI, PIER SIMONE;
1995-01-01

Abstract

The process e+e - -> l lbar f fbar where l is a charged or a neutral lepton and f any charged fermion, is analyzed. The study uses the ALEPH data collected at LEP from 1989 to 1993 at centre-of-mass energies between 88 and 95 GeV, corresponding to almost two million hadronic Z decays and to a total integrated luminosity of 79 pb^-1. For all channels, the data agree well with the standard model expectation both in shape and normalization. The indication of an excess in the e+e- ->tau+ tau- f fbar channel, reported by ALEPH in 1991, is not confirmed.
1995
D., B., D., C., I., B., D., D., P., G., C., G., et al. (1995). Study of the four-fermion final state at the Z resonance. ZEITSCHRIFT FÜR PHYSIK. C, PARTICLES AND FIELDS, 66(1-2), 3-18 [10.1007/BF01496576].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/36298
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