Collider-independent t¯t forward-backward asymmetries Aguilar Saavedra, Juan Antonio Forward-backward (FB) LHC (Large Hadron Collider) Asymmetries Tevatron We introduce the forward-backward asymmetries Au, Ad corresponding to u¯u, d ¯ d -> t¯t 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. 2014-02-20T12:52:11Z 2014-02-20T12:52:11Z 2012 info:eu-repo/semantics/preprint arXiv:1205.1898v2 http://hdl.handle.net/10481/30516 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License