Search for dijet resonances in 7 TeV pp collisions at CMS

• Published in: Physical review letters Vol. 105; no. 21; p. 211801
• Main Authors: Khachatryan, V, Sirunyan, A M, Tumasyan, A, Adam, W, Bergauer, T, Dragicevic, M, Erö, J, Fabjan, C, Friedl, M, Frühwirth, R, Ghete, V M, 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, De Wolf, E A, 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, Blyweert, S, D'Hondt, J, Devroede, O, Kalogeropoulos, A, Maes, J, Maes, M, Tavernier, S, Van Doninck, W, Van Mulders, P, Villella, I, Chabert, E C, Charaf, O, Clerbaux, B, De Lentdecker, G, Dero, V, Gay, A P R, Hammad, G H, Hreus, T, Marage, P E, Thomas, L, Vander Velde, C, Vanlaer, P, Wickens, J, Costantini, S, Grunewald, M, Klein, B, Marinov, A, Ryckbosch, D, Thyssen, F, Tytgat, M, Vanelderen, L, Verwilligen, P, Walsh, S, Zaganidis, N, Basegmez, S, Bruno, G, Caudron, J, De Favereau De Jeneret, J, Delaere, C, Demin, P, Favart, D, Giammanco, A, Grégoire, G, Hollar, J, Lemaitre, V, Militaru, O, Ovyn, S, Pagano, D, Pin, A
• Format: Journal Article
• Language: English
• Published: United States American Physical Society 19-11-2010
• Subjects: ACCELERATORS; BARYON-BARYON INTERACTIONS; BRANCHING RATIO; CERN LHC; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CROSS SECTIONS; CYCLIC ACCELERATORS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY RANGE; HADRON-HADRON INTERACTIONS; HADRONS; High Energy Physics - Experiment; INTERACTIONS; LUMINOSITY; MASS SPECTRA; NUCLEON-NUCLEON INTERACTIONS; OPTICAL PROPERTIES; PARTICLE DECAY; PARTICLE INTERACTIONS; PHYSICAL PROPERTIES; Physics; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; PROTON-NUCLEON INTERACTIONS; PROTON-PROTON INTERACTIONS; QUARK-GLUON INTERACTIONS; QUARK-QUARK INTERACTIONS; RESONANCE; RESONANCE PARTICLES; SPECTRA; STORAGE RINGS; SYNCHROTRONS; TEV RANGE
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.105.211801

A search for narrow resonances in the dijet mass spectrum is performed using data corresponding to an integrated luminosity of 2.9 pb⁻¹ collected by the CMS experiment at the Large Hadron Collider. Upper limits at the 95% confidence level are presented on the product of the resonance cross section, branching fraction into dijets, and acceptance, separately for decays into quark-quark, quark-gluon, or gluon-gluon pairs. The data exclude new particles predicted in the following models at the 95% confidence level: string resonances, with mass less than 2.50 TeV, excited quarks, with mass less than 1.58 TeV, and axigluons, colorons, and E6 diquarks, in specific mass intervals. This extends previously published limits on these models.