TY - JOUR
T1 - Search for resonances in the dilepton mass distribution in pp collisions at √s = 7TeV
AU - The CMS collaboration
AU - Correction Chatrchyan, S.
AU - Khachatryan, V.
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Bergauer, T.
AU - Dragicevic, M.
AU - Erö, J.
AU - Fabjan, C.
AU - Friedl, M.
AU - Frühwirth, R.
AU - Ghete, V. M.
AU - Hammer, J.
AU - Hänsel, S.
AU - Hoch, M.
AU - Hörmann, N.
AU - Hrubec, J.
AU - Jeitler, M.
AU - Kasieczka, G.
AU - Kiesenhofer, W.
AU - Krammer, M.
AU - Liko, D.
AU - Mikulec, I.
AU - Pernicka, M.
AU - Rohringer, H.
AU - Schöfbeck, R.
AU - Strauss, J.
AU - Teischinger, F.
AU - Wagner, P.
AU - Waltenberger, W.
AU - Walzel, G.
AU - Widl, E.
AU - Wulz, C. E.
AU - Mossolov, V.
AU - Shumeiko, N.
AU - Suarez Gonzalez, J.
AU - Benucci, L.
AU - De Wolf, E. A.
AU - Janssen, X.
AU - Maes, T.
AU - Mucibello, L.
AU - Ochesanu, S.
AU - Roland, B.
AU - Rougny, R.
AU - Selvaggi, M.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Marlow, Daniel Robert
AU - Olsen, James D.
AU - Tully, Christopher George
PY - 2011
Y1 - 2011
N2 - A search for narrow resonances at high mass in the dimuon and dielectron channels has been performed by the CMS experiment at the CERN LHC, using pp collision data recorded at √s = 7TeV. The event samples correspond to integrated luminosities of 40 pb-1in the dimuon channel and 35 pb-1in the dielectron channel. Heavy dilepton resonances are predicted in theoretical models with extra gauge bosons (Z') or as Kaluza- Klein graviton excitations (GKK) in the Randall-Sundrum model. Upper limits on the inclusive cross section of Z'(GKK) ! ℓ+ℓ-relative to Z → ℓ+ℓ-are presented. These limits exclude at 95% confidence level a Z' with standard-model-like couplings below 1140 GeV, the superstring-inspired Z' ψ below 887 GeV, and, for values of the coupling parameter k√MPl of 0.05 (0.1), Kaluza-Klein gravitons below 855 (1079) GeV.
AB - A search for narrow resonances at high mass in the dimuon and dielectron channels has been performed by the CMS experiment at the CERN LHC, using pp collision data recorded at √s = 7TeV. The event samples correspond to integrated luminosities of 40 pb-1in the dimuon channel and 35 pb-1in the dielectron channel. Heavy dilepton resonances are predicted in theoretical models with extra gauge bosons (Z') or as Kaluza- Klein graviton excitations (GKK) in the Randall-Sundrum model. Upper limits on the inclusive cross section of Z'(GKK) ! ℓ+ℓ-relative to Z → ℓ+ℓ-are presented. These limits exclude at 95% confidence level a Z' with standard-model-like couplings below 1140 GeV, the superstring-inspired Z' ψ below 887 GeV, and, for values of the coupling parameter k√MPl of 0.05 (0.1), Kaluza-Klein gravitons below 855 (1079) GeV.
KW - Hadron-hadron scattering
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U2 - 10.1007/JHEP05(2011)093
DO - 10.1007/JHEP05(2011)093
M3 - Article
AN - SCOPUS:80053133985
SN - 1126-6708
VL - 2011
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 5
M1 - 93
ER -