Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e+e- collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e+e-, μ+μ-, τ+τ-, qq̄, bb̄ and cc̄ production are in agreement with the standard model predictions. Constraints are set on scenarios of new physics such as four-fermion contact interactions, leptoquarks, Z′ bosons, TeV-scale quantum gravity and R-parity violating squarks and sneutrinos.

SCHAEL S, BARATE R, BRUNELIE, RE R, DE BONIS I, DECAMP D, et al. (2007). Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the standard model. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 49, 411-437 [10.1140/epjc/s10052-006-0156-8].

Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the standard model

RASO, Giuseppe;
2007-01-01

Abstract

Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e+e- collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e+e-, μ+μ-, τ+τ-, qq̄, bb̄ and cc̄ production are in agreement with the standard model predictions. Constraints are set on scenarios of new physics such as four-fermion contact interactions, leptoquarks, Z′ bosons, TeV-scale quantum gravity and R-parity violating squarks and sneutrinos.
2007
SCHAEL S, BARATE R, BRUNELIE, RE R, DE BONIS I, DECAMP D, et al. (2007). Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the standard model. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 49, 411-437 [10.1140/epjc/s10052-006-0156-8].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/30624
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