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Search for heavy narrow dilepton resonances in pp collisions at s=7 TeV and s=8 TeVChatrchyan, S.Khachatryan, V.Sirunyan, A.M.Tumasyan, A.Adam, W.Aguilo, E.Bergauer, T.Dragicevic, M.Erö, J.Fabjan, C.Friedl, M.Frühwirth, R.Ghete, V.M.Hörmann, N.Hrubec, J.Jeitler, M.Kiesenhofer, W.Knünz, V.Krammer, M.Krätschmer, I.Liko, D.Mikulec, I.Pernicka, M.Rabady, D.Rahbaran, B.Rohringer, C.Rohringer, H.Schöfbeck, R.Strauss, J.Taurok, A.Waltenberger, W.Wulz, C.-E.Mossolov, V.Shumeiko, N.Suarez Gonzalez, J.Bansal, M.Bansal, S.Cornelis, T.De Wolf, E.A.Janssen, X.Luyckx, S.Mucibello, L.Ochesanu, S.Roland, B.Rougny, R.Selvaggi, M.Van Haevermaet, H.Van Mechelen, P.Van Remortel, N.Van Spilbeeck, A.CMSElectronsMuonsPhysicsResonancesZ^′An updated search for heavy narrow resonances decaying to muon or electron pairs using the CMS detector is presented. Data samples from pp collisions at s=7 TeV and 8 TeV at the LHC, with integrated luminosities of up to 5.3 and 4.1 fb−1, respectively, are combined. No evidence for a heavy narrow resonance is observed. The analysis of the combined data sets excludes, at 95% confidence level, a Sequential Standard Model ZSSM ′ resonance lighter than 2590 GeV, a superstring-inspired Zψ ′ lighter than 2260 GeV, and Kaluza–Klein gravitons lighter than 2390 (2030) GeV, assuming that the coupling parameter k/M¯Pl is 0.10 (0.05). These are the most stringent limits to date. © 2012 CERNElsevier B.V.2013Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/15893https://doi.org/10.1016/j.physletb.2013.02.0030370-2693enPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physicsinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/15893