The forward-backward asymmetry of top quark production at the Tevatron in warped extra dimensional models

Abstract

The CDF and D0 experiments have reported on the measurement of the forward-backward asymmetry of top quark pair production at the Tevatron and the result is that it is more than 2 standard deviations above the predicted value in the Standard Model. This has to be added to the longstanding anomaly in the forward-backward asymmetry for bottom quark production at LEP which is 3 standard deviations different from the Standard Model value. The discrepancy in the bottom asymmetry can be accounted for by the contributions of Kaluza-Klein excitations of electroweak gauge bosons at LEP in warped extra dimensional models in which the fermions are localized differently along the extra dimension so that the gauge interactions of heavy third generation fermions are naturally different from that of light fermions. In this paper, we show that it is more difficult to elaborate a model generating a significant top asymmetry in a similar way -- through exchanges of Kaluza-Klein gluons at the Tevatron -- due to the indirect constraints originating from precision electroweak data.

4 pages, 1 figure, published version

References in corpus (15)

• Theoretical status and prospects for top-quark pair production at hadron colliders
• Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
• First measurement of the forward-backward charge asymmetry in top quark pair production
• The Bulk RS KK-gluon at the LHC
• The theoretical top quark cross section at the Tevatron and the LHC
• Update of Parton Distributions at NNLO
• Top Quarks, Axigluons and Charge Asymmetries at Hadron Colliders
• Hadronic top-quark pair production in association with a hard jet at next-to-leading order QCD: Phenomenological studies for the Tevatron and the LHC
• Flavour physics of the RS model with KK masses reachable at LHC
• Kaluza--Klein excitations of gauge bosons at the LHC
• Resolving the A_{FB}^b puzzle in an extra dimensional model with an extended gauge structure
• Massive color-octet bosons and the charge asymmetries of top quarks at hadron colliders
• The Custodial Randall-Sundrum Model: From Precision Tests to Higgs Physics
• Top production at the Tevatron/LHC and nonstandard, strongly interacting spin one particles
• Review of Properties of the Top Quark from Measurements at the Tevatron

Cited by in corpus (91)

• Forward-backward asymmetry in top quark-antiquark production
• Probing the Tevatron t tbar asymmetry at LHC
• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron
• Measurement of the charge asymmetry in top-quark pair production in proton-proton collisions at sqrt(s) = 7 TeV
• On Models of New Physics for the Tevatron Top A_FB
• Explaining the t-tbar asymmetry with a light axigluon
• Constraining extra-fermion(s) from the Higgs boson data
• Axigluons cannot explain the observed top quark forward-backward asymmetry
• Reproducing the Higgs boson data with vector-like quarks
• A Polarized View of the Top Asymmetry
• Top polarization, forward-backward asymmetry and new physics
• Measurement of the top quark pair production charge asymmetry in proton-proton collisions at 7 TeV using the ATLAS detector
• Asymmetries in t tbar production: LHC versus Tevatron
• Zero and one jet combined NLO analysis of the top quark forward-backward asymmetry
• Asymmetries in top quark pair production at hadron colliders
• Shaping the top asymmetry
• Stealth gluons at hadron colliders
• Top Quark Forward-Backward Asymmetry in the Large Invariant Mass Region
• LHC Signatures of Warped-space Vectorlike Quarks
• Forward-backward asymmetries of the bottom and top quarks in warped extra-dimensional models: LHC predictions from the LEP and Tevatron anomalies
• Top quark forward-backward asymmetry, FCNC decays and like-sign pair production as a joint probe of new physics
• Single Vectorlike Quark Production at the LHC
• Top-flavored dark matter and the forward-backward asymmetry
• Top quark forward-backward asymmetry at Tevatron and its implications at the LHC
• Extraordinary Phenomenology from Warped Flavor Triviality
• Measurement of Leptonic Asymmetries and Top Quark Polarization in ttbar Production
• A composite Higgs model analysis of forward-backward asymmetries in the production of tops at Tevatron and bottoms at LEP and SLC
• Phenomenology of a light gluon resonance in top-physics at Tevatron and LHC
• New physics effects on top quark spin correlation and polarization at the LHC: a comparative study in different models
• Measurement of the inclusive leptonic asymmetry in top-quark pairs that decay to two charged leptons at CDF
• Searching for Top Flavor Violating Resonances
• Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in $pp$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• Boosting the t tbar charge asymmetry
• Higgs boson production via vector-like top-partner decays: diphoton or multilepton plus multijets channels at the LHC
• Measurement of the asymmetry in angular distributions of leptons produced in dilepton ttbar final states in ppbar collisions at sqrt(s)=1.96 TeV
• Top polarisation studies in $H^{-}t$ and $Wt$ production
• $A_{FB}^t$ Meets LHC
• Testing new physics models by top charge asymmetry and polarization at the LHC
• Collider-independent t tbar forward-backward asymmetries
• The Top Forward Backward Asymmetry with general Z ' couplings
• Shedding light on the $t\bar{t}$ asymmetry: the photon handle
• Gluon excitations in t tbar production at hadron colliders
• Tevatron Top $A_{FB}$ Versus LHC Top Physics
• Edge Charge Asymmetry in Top Pair Production at the LHC
• Reconstructing the heavy resonance at hadron colliders
• Data driving the top quark forward--backward asymmetry with a lepton-based handle
• A charged Z' to conciliate the apparent disagreement between top-antitop Tevatron forward-backward asymmetry and LHC charge asymmetry
• Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at $\sqrt{s}=$ 13 TeV
• Identifying the colour of TeV-scale resonances
• Spinning the Top
• One-side forward-backward asymmetry at the LHC
• Diagnosing the top-quark angular asymmetry using LHC intrinsic charge asymmetries
• Top quark forward-backward asymmetry and charge asymmetry in left-right twin Higgs model
• Model independent analysis of top quark forward-backward asymmetry at the Tevatron up to $\mathcal{O}(\as^2/Λ^2)$
• Top Quark Pair Production and Asymmetry at the Tevatron and LHC in Left-Right Models
• Collider-independent top quark forward-backward asymmetries: standard model predictions
• New color-octet axial vector boson revisited
• Top quark forward-backward asymmetry and W^prime bosons
• Top Quark Physics at the Tevatron
• Next-to-leading order QCD effect of $W^{\prime }$ on top quark Forward-Backward Asymmetry
• Interpretations and Implications of the Top Quark Rapidity Asymmetries $A_{FB}^t$ and $A_{FB}^{\ell }$
• New physics contributions to the forward-backward asymmetry at the Tevatron
• Top Quark Forward-Backward Asymmetry and Anomalous Right-Handed Charge Currents
• Dijet resonances, widths and all that
• Mass dependent top forward backward asymmetry in the effective Lagrangian approach: Addendum to "Model independent analysis of the forward-backward asymmetry of top quark production at the Tevatron"
• Scalar Production in Association with a Z Boson at LHC and ILC: the Mixed Higgs-Radion Case of Warped Models
• Two-Higgs-doublet model with a color-triplet scalar: a joint explanation for top quark forward-backward asymmetry and Higgs decay to diphoton
• On a boundary-localized Higgs boson in 5D theories
• Anomalous Wtb coupling and forward-backward asymmetry of top quark production at the Tevatron
• Forward-backward asymmetry on Z resonance in SO(5) x U(1) gauge-Higgs unification
• Constraining Unparticles from Top Physics at TeVatron
• The Forward-Backward Top Asymmetry in a Singlet extension of the MSSM
• One-loop effects on top pair production in the littlest Higgs model with T-parity at the LHC
• Evidence for the charge asymmetry in $pp\to t\bar{t}$ production at $\sqrt{s}=13$ TeV with the ATLAS detector
• On the Forward-Backward Asymmetry of Leptonic Decays of $t\bar{t}$ at the Fermilab Tevatron
• Evidence for a Mass Dependent Forward-Backward Asymmetry in Top Quark Pair Production
• Top quark forward-backward asymmetry in R-parity violating supersymmetry
• New Physics effects on hadronic decay asymmetries of the Top quark
• Can LHC observe an anomaly in ttZ production?
• Tevatron Top Quark Forward-Backward Asymmetry -- Implications for Same-sign Top Quark Pair Production
• LHC sensitivity to Kalzua-Klein gluon in two b-jets decay channel
• Top-philic Machine Learning
• Correlation of top asymmetries: loop versus tree origins
• The ttbar asymmetry in the Standard Model and beyond
• Top-quark forward-backward asymmetry from a color-octet t-channel resonance
• Rigorous treatment of the ${\mathcal{S}}^1/{\mathbb{Z}}_2$ orbifold model with brane-Higgs couplings
• Colored bosons on top FBA and angular cross section for $t\bar{t}$ production
• Diboson production at LHC with warped extra dimensions
• Chiral color symmetry and $G^{\prime }$-boson mass limit from Tevatron data on $t\bar{t}$-production
• Study the Forward-Backward Asymmetry of the Top Quark Production in the Randall-Sundrum Model with an Extension of Strong Interaction