Top quark asymmetry and dijet resonances

Abstract

CDF recently reported an anomaly in the $m_{jj}$ distribution of dijet events produced in association with a $W$ boson. If this anomaly is associated with a new flavor conserving vector resonance, $V$, one might have expected to observe effects in the analogous $m_{jj}$ distribution produced in association with a $\gamma$. No such excess is observed. A single $u-t-V$ flavor changing coupling, however, can contribute to the $m_{jj}$ anomaly while being consistent with other resonance searches. Furthermore, it gives a potential explanation of the observed forward-backward asymmetry in top quark production.

4 pages, 1 figure

References in corpus (17)

• First measurement of the forward-backward charge asymmetry in top quark pair production
• Invariant Mass Distribution of Jet Pairs Produced in Association with a W boson in ppbar Collisions at sqrt(s) = 1.96 TeV
• Top quark asymmetry from a non-Abelian horizontal symmetry
• On Models of New Physics for the Tevatron Top A_FB
• Light Z' Bosons at the Tevatron
• No like-sign tops at Tevatron: Constraints on extended models and implications for the t tbar asymmetry
• First Measurement of the Ratio sigma_(t-tbar) / sigma_(Z/γ*->ll) and Precise Extraction of the t-tbar Cross Section
• Top Quark Forward-Backward Asymmetry in the Large Invariant Mass Region
• Bounds on an anomalous dijet resonance in W+jets production in ppbar collisions at sqrt{s} =1.96 TeV
• Baryonic Z' Explanation for the CDF Wjj Excess
• Tevatron Asymmetry of Tops in a W',Z' Model
• Technicolor at the Tevatron
• Stringy origin of Tevatron Wjj anomaly
• A Theory for Maximal Flavor Violation
• A Z' Model for the CDF Dijet Anomaly
• A Possible Interpretation of CDF Dijet Mass Anomaly and its Realization in Supersymmetry
• $\mathcal{O}(100GeV)$ Deci-weak $W^{\prime }/Z^{\prime }$ at Tevatron and LHC

Cited by in corpus (24)

• An Effective Z'
• A Polarized View of the Top Asymmetry
• Search for same-sign top-quark pair production at sqrt(s) = 7 TeV and limits on flavour changing neutral currents in the top sector
• Phenomenology of a light gluon resonance in top-physics at Tevatron and LHC
• Boosting the t tbar charge asymmetry
• Flavor Symmetric Sectors and Collider Physics
• Z'-gauge Bosons as Harbingers of Low Mass Strings
• Top A_FB at the Tevatron vs. charge asymmetry at the LHC in chiral U(1) flavor models with flavored Higgs doublets
• Signatures of Resonant Super-Partner Production with Charged-Current Decays
• Possible Common Origin of the Top Forward-backward Asymmetry and the CDF Dijet Resonance
• Top asymmetry and the search for a light hadronic resonance in association with single top
• Dijet resonance from leptophobic Z' and light baryonic cold dark matter
• Top quark forward-backward asymmetry and W^prime bosons
• New color-octet axial vector boson revisited
• Same-sign Tops: A Powerful Diagnostic Test for Models of New Physics
• 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 $A_{FB}^{\ell }$
• Impact of extra particles on indirect Z' limits
• A light charged Higgs boson in two-Higgs doublet model for CDF $Wjj$ anomaly
• A Higgsophilic s-channel Z' and the CDF W+2J Anomaly
• Dissecting the Wjj Anomaly: Diagnostic Tests of a Leptophobic Z'
• What the Tevatron Found?
• Anomaly Puzzle, Curved-Spacetime Spinor Hamiltonian, and String Phenomenology
• LHC Test of CDF $Wjj$ anomaly