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

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-, mu+mu-, tau+tau-, qq, bb and cc 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.

to be published in The European Physical Journal C

References in corpus (8)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Electroweak symmetry breaking after LEP1 and LEP2
• Tests of the Standard Model and Constraints on New Physics from Measurements of Fermion-Pair Production at 189-209 GeV at LEP
• Graviton collider effects in one and more large extra dimensions
• Search for Z'--> e^+e^- Using Dielectron Mass and Angular Distribution
• Measurement and Interpretation of Fermion-Pair Production at LEP energies above the Z Resonance
• Measurement of the W boson mass and width in e+e- collisions at LEP
• Measurement of Hadron and Lepton-Pair Production in e+e- Collisions at sqrt{s}=192-208GeV at LEP

Cited by in corpus (49)

• Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP
• Electroweak symmetry breaking after LEP1 and LEP2
• Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
• Status of non-standard neutrino interactions
• The Stueckelberg $Z^{\prime }$ Extension with Kinetic Mixing and Milli-Charged Dark Matter From the Hidden Sector
• Searching for the light dark gauge boson in GeV-scale experiments
• Low Energy Measurements of the Weak Mixing Angle
• Constraints on two-lepton, two quark operators
• Search for heavy narrow dilepton resonances in pp collisions at sqrt(s) = 7 TeV and sqrt(s) = 8 TeV
• Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Search for Resonances in the Dilepton Mass Distribution in pp Collisions at sqrt(s) = 7 TeV
• Little-Higgs corrections to precision data after LEP2
• Search for narrow resonances in dilepton mass spectra in pp collisions at sqrt(s) = 7 TeV
• Graviton collider effects in one and more large extra dimensions
• Search for high-mass resonances decaying to dilepton final states in pp collisions at a center-of-mass energy of 7 TeV with the ATLAS detector
• Explaining the Lepton Non-universality at the LHCb and CMS from a Unified Framework
• Electron and muon $g-2$ anomalies in general flavour conserving two Higgs doublets models
• Search for extra dimensions using diphoton events in 7 TeV proton-proton collisions with the ATLAS detector
• Search for Extra Dimensions in diphoton events using proton-proton collisions recorded at sqrt(s) = 7 TeV with the ATLAS detector at the LHC
• Search for contact interactions and large extra dimensions in the dilepton channel using proton-proton collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Constraints on Non-standard Top Quark Couplings
• Supersymmetry and precision data after LEP2
• Muon and electron $g-2$ anomalies in a flavor conserving 2HDM with an oblique view on the CDF $M_W$ value
• Effective Field Theory for Nonstandard Top Quark Couplings
• TeV dark matter and the DAMPE electron excess
• Low-energy phenomenology of trinification: an effective left-right-symmetric model
• Searching for New Physics with $b\bar{b}{\ell }^{+}{\ell }^{-}$ Contact Interactions
• Location and Direction Dependent Effects in Collider Physics from Noncommutativity
• Non-Standard Neutrino Interactions at Colliders
• Non-Standard Neutrino Interactions : Obviating Oscillation Experiments
• A Study of b bbar Production in e+e- Collisions at sqrt(s) = 130-207 GeV
• Purely flavor-changing Z' bosons and where they might hide
• Effective comparison of neutrino-mass models
• Initial State Radiation: A success story
• Constraints on $U(1{)}_{L_{\mu }-L_{\tau }}$ from LHC Data
• Leptoquarks decaying to a top quark and a charged lepton at hadron colliders
• Search for Contact Interactions in Dimuon Events from pp Collisions at sqrt(s) = 7 TeV with the ATLAS Detector
• Search for contact interactions in opposite-sign dimuon events in pp collisions at sqrt(s) = 7 TeV
• Exploring Flavor-Dependent Long-Range Forces in Long-Baseline Neutrino Oscillation Experiments
• The interplay between SM precision, BSM physics and measurements of ${\alpha }_{\mathrm{had}}$ in $\mu$-$e$ scattering
• High $p_T$ correlated tests of lepton universality in lepton(s) + jet(s) processes; an EFT analysis
• Toponium: the smallest bound state and simplest hadron in quantum mechanics
• Constraints on New Physics from Long Baseline Neutrino Oscillation Experiments
• Hidden Sector Models and Signatures
• Sneutrino Identification in Lepton Pair Production at ILC with Polarized Beams
• Probing charged lepton flavor violation with axion-like particles at Belle II
• Non standard neutrino interactions at LEP2 and the LHC
• Search for narrow resonances in the lepton final state at CMS