A charged Z' to conciliate the apparent disagreement between top-antitop Tevatron forward-backward asymmetry and LHC charge asymmetry

Abstract

We propose a charged, electrically neutral, and flavour changing Z' model to conciliate the apparent disagreement between the important excess found in the top-antitop Tevatron forward-backward asymmetry and the null -compatible with negative- results found in the LHC charge asymmetry. We show that this model contributes positively to the forward-backward asymmetry, whereas naturally a new cancellation is turned on at the LHC, yielding a null, or even negative, charge asymmetry. We found the region in parameter space that is simultaneously allowed by the stringent Tevatron and LHC observables. We show that the model is safe to atomic parity violation constraints and to tj resonance searches, and propose a possible increase in the Z' width to avoid ttj constraints. We evaluate the constraints to the model, as well as distinctive features in the fore-coming experimental results.

25 pages, 4 figures

References in corpus (29)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• NNLL resummation for s-channel single top quark production
• Revisiting parity non-conservation in cesium
• Effective four-fermion operators in top physics: a roadmap
• Constraining heavy colored resonances from top-antitop quark events
• Probing the Tevatron t tbar asymmetry at LHC
• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at sqrt(s) = 7 TeV
• Inclusive and differential measurements of the t t-bar charge asymmetry in proton-proton collisions at sqrt(s) = 7 TeV
• Top quark asymmetry from a non-Abelian horizontal symmetry
• No like-sign tops at Tevatron: Constraints on extended models and implications for the t tbar asymmetry
• QCD Coherence and the Top Quark Asymmetry
• Tevatron Asymmetry of Tops in a W',Z' Model
• Parity violation and electric dipole moments in atoms and molecules
• Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV
• New Strongly Coupled Sector at the Tevatron and the LHC
• Solving the A{FB}^b anomaly in natural composite models
• Search for charge-asymmetric production of W' bosons in top pair + jet events from pp collisions at sqrt(s) = 7 TeV
• Search for a dark matter candidate produced in association with a single top quark in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Forward Tevatron Tops and Backward LHC Tops with Associates
• Search for a heavy particle decaying to a top quark and a light quark in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Ultraviolet Completions of Axigluon Models and Their Phenomenological Consequences
• New Color-Octet Vector Boson?
• Top A_{FB} and charge asymmetry in flavor-dependent chiral U(1)' model

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• Measurement of the top quark forward-backward production asymmetry and its dependence on event kinematic properties
• Zero and one jet combined NLO analysis of the top quark forward-backward asymmetry
• Asymmetries in top quark pair production at hadron colliders
• Top-flavored dark matter and the forward-backward asymmetry
• Measurement of the leptonic asymmetry in ttbar events produced in ppbar collisions at sqrt(s)=1.96 TeV
• Shedding light on the $t\bar{t}$ asymmetry: the photon handle
• Data driving the top quark forward--backward asymmetry with a lepton-based handle
• Light axigluon explanation of the Tevatron ttbar asymmetry and multijet signals at the LHC
• Leptonic Monotops at LHC
• Bottom-Quark Forward-Backward Asymmetry in the Standard Model and Beyond
• Leptophobic Z' Boson and Parity-Violating eD Scattering
• Same-sign Tops: A Powerful Diagnostic Test for Models of New Physics
• Interpretations and Implications of the Top Quark Rapidity Asymmetries $A_{FB}^t$ and $A_{FB}^{\ell }$
• Probing Radiative Neutrino Mass Generation through Monotop Production
• Topping-up multilepton plus b-jets anomalies at the LHC with a $Z^{\prime }$ boson
• Top-quark forward-backward asymmetry from a color-octet t-channel resonance
• Top-antitop resonance searches beyond 1 TeV
• Top-quark Polarization and Asymmetries at the LHC in the Effective Description of Squark Interactions