Like-sign dilepton signals from a leptophobic Z' boson Águila Giménez, Francisco Del Aguilar Saavedra, Juan Antonio Dilepton LHC (Large Hadron Collider) Tevatron A new leptophobic neutral gauge boson Z' with small mixing to the Z can have a mass as light as M_Z' ~ 350 GeV, and still have escaped detection at LEP and Tevatron. Such a Z' boson can be derived from E6 and, if the new heavy neutrino singlets in the 27 representation are lighter than M_Z'/2, the process p p(pbar) -> Z' -> NN -> l+- l+- X is observable. Indeed, this new signal could explain the small excess of like-sign dileptons found at Tevatron. Implications for LHC are also discussed. In particular, the Tevatron excess could be confirmed with less than 1 fb-1, and leptophobic Z' masses up to 2.5 TeV can be probed with 30 fb-1. 2014-02-27T13:42:18Z 2014-02-27T13:42:18Z 2007 info:eu-repo/semantics/article Águila, F.; Aguilar-Saavedra, J.A. Like-sign dilepton signals from a leptophobic Z' boson. Journal of High Energy Physics, 11: 072 (2007). [http://hdl.handle.net/10481/30597] 1029-8479 doi: 10.1088/1126-6708/2007/11/072 arXiv:0705.4117v2 http://hdl.handle.net/10481/30597 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License IOP Publishing