@article{3157612,
    title = "Search for fractionally charged particles in pp collisions at root s=7
TeV",
    author = "Chatrchyan, S. and Khachatryan, V. and Sirunyan, A. M. and Tumasyan, A. and and Adam, W. and Aguilo, E. and Bergauer, T. and Dragicevic, M. and and Eroe, J. and Fabjan, C. and Friedl, M. and Fruehwirth, R. and Ghete, V. and M. and Hammer, J. and Hoermann, N. and Hrubec, J. and Jeitler, M. and and Kiesenhofer, W. and Knuenz, V. and Krammer, M. and Kraetschmer, I. and and Liko, D. and Mikulec, I. and Pernicka, M. and Rahbaran, B. and and Rohringer, C. and Rohringer, H. and Schoefbeck, R. and Strauss, J. and and Taurok, A. and Waltenberger, W. and Walzel, G. and Widl, E. and Wulz, C. and -E. and Mossolov, V. and Shumeiko, N. and Suarez Gonzalez, J. and and Bansal, M. and Bansal, S. and Cornelis, T. and De Wolf, E. A. and and Janssen, X. and Luyckx, S. and Mucibello, L. and Ochesanu, S. and and Roland, B. and Rougny, R. and Selvaggi, M. and Staykova, Z. and Van and Haevermaet, H. and Van Mechelen, P. and Van Remortel, N. and Van and Spilbeeck, A. and Blekman, F. and Blyweert, S. and D'Hondt, J. and and Suarez, R. Gonzalez and Kalogeropoulos, A. and Maes, M. and Olbrechts, and A. and Van Doninck, W. and Van Mulders, P. and Van Onsem, G. P. and and Villella, I. and Clerbaux, B. and De Lentdecker, G. and Dero, V. and and Gay, A. P. R. and Hreus, T. and Leonard, A. and Marage, P. E. and and Mohammadi, A. and Reis, T. and Thomas, L. and Vander Marcken, G. and and Vander Velde, C. and Vanlaer, P. and Wang, J. and Adler, V. and and Beernaert, K. and Cimmino, A. and Costantini, S. and Garcia, G. and and Grunewald, M. and Klein, B. and Lellouch, J. and Marinov, A. and and Mccartin, J. and Rios, A. A. 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    journal = "Physical Review D",
    year = "2013",
    volume = "87",
    number = "9",
    publisher = "AMER PHYSICAL SOC",
    issn = "2470-0010, 2470-0029",
    doi = "10.1103/PhysRevD.87.092008",
    abstract = "A search is presented for free heavy long-lived fractionally charged
particles produced in pp collisions at root s = 7 TeV. The data sample
was recorded by the CMS detector at the LHC and corresponds to an
integrated luminosity of 5.0 fb(-1). Candidate fractionally charged
particles are identified by selecting tracks with associated low charge
measurements in the silicon tracking detector. Observations are found to
be consistent with expectations for background processes. The results of
the search are used to set upper limits on the cross section for pair
production of fractionally charged, massive spin-1/2 particles that are
neutral under SU(3)(C) and SU(2)(L). We exclude at 95% confidence level
such particles with electric charge +/- 2e/3 with masses below 310 GeV,
and those with charge +/- e/3 with masses below 140 GeV."
}