Top A FB at the Tevatron vs. charge asymmetry at the LHC in chiral U(1) flavor models with flavored Higgs doublets

2012/05/31 by Pyungwon Ko, P. Ko, Yuji Omura +1 · 2 citations
Physics and Astronomy · #Asymmetry #Boson #Charge (physics) #Gauge boson #Gauge theory #Geometry #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #Scalar (mathematics) #Tevatron #Top quark #hep-ex #hep-ph

paper · pdf · doi:10.1140/epjc/s10052-012-2269-6

11 pages, 6 figures, figures and discussion added

arxiv created 2012/09/26 · openalex publication_date 2013/01/01 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We consider the top forward-backward (FB) asymmetry at the Tevatron and top charge asymmetry at the LHC within chiral U(1)^′ models with flavor-dependent U(1)^′ charges and flavored Higgs fields, which were introduced in the ref. [65]. The models could enhance not only the top forward-backward asymmetry at Tevatron, but also the top charge asymmetry at LHC, without too large same-sign top pair production rates. We identify parameter spaces for the U(1)^′ gauge boson and (pseudo)scalar Higgs bosons where all the experimental data could be accommodated, including the case with about 125 GeV Higgs boson, as suggested recently by ATLAS and CMS.

Citations

• Forward-backward asymmetry and the differential cross section of the top quark in the flavor violatingZ′model atO(αs2αX)
• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Longitudinal top polarization as a probe of a possible origin of forward–backward asymmetry of the top quark at the Tevatron
• Evidence for a Mass Dependent Forward-Backward Asymmetry in Top Quark Pair Production
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Searching for top flavor violating resonances

Cited by

• Measurement of the asymmetry in angular distributions of leptons produced in dileptontt¯final states inpp¯collisions ats=1.96 TeV
• A flavor dependent gauge symmetry, predictive radiative seesaw and LHCb anomalies