Search for dijet resonances in 7 TeV pp collisions at CMS

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,...

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Veröffentlicht in:	Physical review letters 2010-11, Vol.105 (21), p.211801-211801
Hauptverfasser:	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:	Artikel
Sprache:	eng
Schlagworte:	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
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Zusammenfassung:	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.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.105.211801