Collider-independent t tbar forward-backward asymmetries
arXiv:1205.1898 · doi:10.1103/PhysRevLett.109.211804
Abstract
We introduce the forward-backward asymmetries A_u, A_d corresponding to u ubar, d dbar -> t tbar production, respectively, at hadron colliders. These are collider- and center-of-mass-independent observables, directly related to the forward-backward and charge asymmetries measured at the Tevatron and the LHC, respectively. We discuss how to extract these asymmetries from data. Because these asymmetries are collider-independent, their measurement at these two colliders could elucidate the nature of the anomalous forward-backward asymmetry measured at the Tevatron. Our framework also shows in a model-independent fashion that a positive Tevatron asymmetry exceeding the standard model expectation is compatible with the small asymmetry measured at the LHC.
RevTeX 5 pages. Extended discussion about A_FB vs A_C, several clarifications, references added. Version to appear in PRL
References in corpus (11)
- Top quark and leptonic charge asymmetries for the Tevatron and LHC
- Single top quark production at LHC with anomalous Wtb couplings
- Measurement of the charge asymmetry in top quark pair production in pp collisions at sqrt(s) = 7 TeV using the ATLAS detector
- Probing the Tevatron t tbar asymmetry at LHC
- Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
- 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
- Top quark forward-backward asymmetry at Tevatron and its implications at the LHC
- A Theory for Maximal Flavor Violation
- Using Final State Pseudorapidities to Improve s-channel Resonance Observables at the LHC
- Light Colored Scalar as Messenger of Up-Quark Flavor Dynamics in Grand Unified Theories
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- Measurement of the charge asymmetry in top-quark pair production in the lepton-plus-jets final state in collision data at TeV with the ATLAS detector
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- Top Quark Asymmetries and Unparticle Physics
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- Top-quark forward-backward asymmetry from a color-octet t-channel resonance
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