Measurement of the asymmetry in angular distributions of leptons produced in dileptontt¯final states inpp¯collisions ats=1.96 TeV

2013/08/31 by D0 Collaboration, V. M. Abazov, B. Abbott +98 · 3 citations
Physics and Astronomy · #Asymmetry #Boson #Charged particle #Collider #Collider Detector at Fermilab #Electroweak interaction #Fermilab #High-Energy Particle Collisions Research #Large Hadron Collider #Lepton #Luminosity #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudorapidity #Quantum Chromodynamics and Particle Interactions #Standard Model (mathematical formulation) #Tevatron #Top quark #hep-ex

paper · pdf · doi:10.1103/physrevd.88.112002

published as Phys. Rev. D 88, 112002 (2013) · submitted to Phys. Rev. D

arxiv created 2013/09/03 · openalex publication_date 2013/12/02 · arxiv updated 2013/12/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present measurements of asymmetries in angular distributions of leptons produced in tt events in proton-antiproton collisions at the Fermilab Tevatron Collider. We consider final states where the W^\ifmmode±\else\textpm\fi bosons from top quark and antiquark decays both decay into \ensuremathℓ\ensuremathν (\ensuremathℓ=e, \ensuremathμ) resulting in oppositely charged dilepton final states with accompanying jets. Using 9.7 fb^\ensuremath-1 of integrated luminosity collected with the D0 detector, we find the asymmetries in lepton pseudorapidity compatible with predictions based on the standard model.

Citations

• Observation of the Top Quark
• Forward-backward asymmetry and the differential cross section of the top quark in the flavor violatingZ′model atO(αs2αX)
• Observation of Top Quark Production inp¯pCollisions with the Collider Detector at Fermilab
• b-Jet identification in the D0 experiment
• Forward–backward asymmetry of top quark in unparticle physics
• Longitudinal top polarization as a probe of a possible origin of forward–backward asymmetry of the top quark at the Tevatron
• Top A FB at the Tevatron vs. charge asymmetry at the LHC in chiral U(1) flavor models with flavored Higgs doublets
• HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes)
• The Upgraded D0 Detector
• ALPGEN, a generator for hard multiparton processes in hadronic collisions
• The muon system of the Run II DØ detector

Cited by

• Measurement of differentialtt¯production cross sections inpp¯collisions
• Top-quark physics: Status and prospects
• First Measurement of the Charge Asymmetry in Beauty-Quark Pair Production
• Study of Bs0 → ℓ+ℓ−γ decays in a nonuniversal Z′ model