Search for resonances in the dilepton mass distribution in pp collisions at root s=7 TeV Academic Article uri icon

abstract

  • 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) ! +-relative to Z +-are presented. These limits exclude at 95% confidence level a Z' with standard-model-like couplings below 1140 GeV, the superstring-inspired Z' below 887 GeV, and, for values of the coupling parameter kMPl of 0.05 (0.1), Kaluza-Klein gravitons below 855 (1079) GeV. SISSA 2011.

published proceedings

  • JOURNAL OF HIGH ENERGY PHYSICS

altmetric score

  • 0.25

author list (cited authors)

  • Chatrchyan, S., Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., ... Weinberg, M.

citation count

  • 54

complete list of authors

  • Chatrchyan, S||Khachatryan, V||Sirunyan, AM||Tumasyan, A||Adam, W||Bergauer, T||Dragicevic, M||Eroe, J||Fabjan, C||Friedl, M||Fruehwirth, R||Ghete, VM||Hammer, J||Haensel, S||Hoch, M||Hoermann, N||Hrubec, J||Jeitler, M||Kasieczka, G||Kiesenhofer, W||Krammer, M||Liko, D||Mikulec, I||Pernicka, M||Rohringer, H||Schoefbeck, R||Strauss, J||Teischinger, F||Wagner, P||Waltenberger, W||Walzel, G||Widl, E||Wulz, C-E||Mossolov, V||Shumeiko, N||Gonzalez, J Suarez||Benucci, L||De Wolf, EA||Janssen, X||Maes, T||Mucibello, L||Ochesanu, S||Roland, B||Rougny, R||Selvaggi, M||Van Haevermaet, H||Van Mechelen, P||Van Remortel, N||Blekman, F||Blyweert, S||D'Hondt, J||Devroede, O||Suarez, R Gonzalez||Kalogeropoulos, A||Maes, J||Maes, M||Van Doninck, W||Van Mulders, P||Van Onsem, GP||Villella, I||Charaf, O||Clerbaux, B||De Lentdecker, G||Dero, V||Gay, APR||Hammad, GH||Hreus, T||Marage, PE||Thomas, L||Velde, C Vander||Vanlaer, P||Adler, V||Cimmino, A||Costantini, S||Grunewald, M||Klein, B||Lellouch, J||Marinov, A||Mccartin, J||Ryck
  • Chatrchyan, S||Khachatryan, V||Sirunyan, AM||Tumasyan, A||Adam, W||Bergauer, T||Dragicevic, M||Erö, J||Fabjan, C||Friedl, M||Frühwirth, R||Ghete, VM||Hammer, J||Hänsel, S||Hoch, M||Hörmann, N||Hrubec, J||Jeitler, M||Kasieczka, G||Kiesenhofer, W||Krammer, M||Liko, D||Mikulec, I||Pernicka, M||Rohringer, H||Schöfbeck, R||Strauss, J||Teischinger, F||Wagner, P||Waltenberger, W||Walzel, G||Widl, E||Wulz, C-E||Mossolov, V||Shumeiko, N||Suarez Gonzalez, J||Benucci, L||De Wolf, EA||Janssen, X||Maes, T||Mucibello, L||Ochesanu, S||Roland, B||Rougny, R||Selvaggi, M||Van Haevermaet, H||Van Mechelen, P||Van Remortel, N||Blekman, F||Blyweert, S||D’Hondt, J||Devroede, O||Gonzalez Suarez, R||Kalogeropoulos, A||Maes, J||Maes, M||Van Doninck, W||Van Mulders, P||Van Onsem, GP||Villella, I||Charaf, O||Clerbaux, B||De Lentdecker, G||Dero, V||Gay, APR||Hammad, GH||Hreus, T||Marage, PE||Thomas, L||Vander Velde, C||Vanlaer, P||Adler, V||Cimmino, A||Costantini, S||Grunewald, M||Klein, B||Lellouch, J||Marinov, A||Mccartin, J||Ry

publication date

  • May 2011