Search for stopped Gluinos in pp collisions at square root s=7 TeV. Academic Article uri icon

abstract

  • The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 110(32) cm-2 s-1, an integrated luminosity of 10 pb-1, and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference mg - m1(0) >100 GeV/c2, and assuming BR(gg1(0))=100%, mg < 370 GeV/c2 are excluded for lifetimes from 10 s to 1000 s.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., ... CMS Collaboration.

complete list of authors

  • 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||Hartl, C||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||Taurok, A||Teischinger, F||Waltenberger, W||Walzel, G||Widl, E||Wulz, C-E||Mossolov, V||Shumeiko, N||Suarez Gonzalez, J||Benucci, L||Ceard, L||Cerny, K||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||Adler, V||Beauceron, S||Blekman, F||Blyweert, S||D'Hondt, J||Devroede, O||Kalogeropoulos, A||Maes, J||Maes, M||Tavernier, S||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||Wickens, J||Costantini, S||Grunewald, M||Klein, B||Marinov, A||Ryckbos

publication date

  • January 1, 2011 11:11 AM