Authors
Serguei Chatrchyan, Vardan Khachatryan, Albert M Sirunyan, Armen Tumasyan, Wolfgang Adam, Thomas Bergauer, Marko Dragicevic, Janos Erö, Christian Fabjan, Markus Friedl, Rudolf Frühwirth, VM Ghete, J Hammer, N Hoermann, J Hrubec, Manfred Jeitler, W Kiesenhofer, Manfred Krammer, D Liko, I Mikulec, M Pernicka, B Rahbaran, C Rohringer, H Rohringer, R Schoefbeck, J Strauss, A Taurok, F Teischinger, P Wagner, W Waltenberger, G Walzel, E Widl, C-E Wulz, N Shumeiko, J Suarez Gonzalez, S Bansal, K Cerny, Tom Cornelis, EA De Wolf, X Janssen, S Luyckx, T Maes, L Mucibello, S Ochesanu, B Roland, R Rougny, M Selvaggi, H Van Haevermaet, P Van Mechelen, A Van Spilbeeck, F Blekman, S Blyweert, J D’Hondt, R Gonzalez Suarez, A Kalogeropoulos, M Maes, A Olbrechts, W Van Doninck, P Van Mulders, GP Van Onsem, I Villella, O Charaf, B Clerbaux, G De Lentdecker, V Dero, APR Gay, T Hreus, A Léonard, PE Marage, T Reis, L Thomas, C Vander Velde, P Vanlaer, Volker Adler, Kelly Beernaert, Anna Cimmino, Silvia Costantini, Guillaume Garcia, M Grunewald, Benjamin Klein, Jeremie Lellouch, Andrey Marinov, Joseph McCartin, AA Rios, Dirk Ryckbosch, Nadja Strobbe, Filip Thyssen, Michael Tytgat, Lukas Vanelderen, Piet Verwilligen, S Walsh, Efe Yazgan, Nikolaos Zaganidis, S Basegmez, G Bruno, L Ceard, C Delaere, T Du Pree, D Favart, L Forthomme, A Giammanco, J Hollar, V Lemaitre, J Liao, O Militaru, C Nuttens, D Pagano, A Pin, K Piotrzkowski, N Schul, N Beliy, T Caebergs, E Daubie, GH Hammad, GA Alves, Martins Junior, D De Jesus Damiao, T Martins, ME Pol, MHG Souza, WL Júnior, W Carvalho, A Custódio, EM Da Costa, C De Oliveira Martins, S Fonseca De Souza, D Matos Figueiredo, L Mundim, H Nogima, V Oguri, WL Da Silva, A Santoro, SM Amaral, L Soares Jorge, A Sznajder, TS Anjos, CA Bernardes, FA Dias, TR Tomei, EM Gregores, C Lagana, F Marinho, PG Mercadante, Sérgio Ferraz Novaes, Sandra S Padula, V Genchev, P Iaydjiev, S Piperov, M Rodozov, S Stoykova
Publication date
2012/9
Journal
Journal of High Energy Physics
Volume
2012
Issue
9
Pages
1-41
Publisher
Springer-Verlag
Description
A search is presented for a massive particle, generically referred to as a Z′, decaying into a pair. The search focuses on Z′ resonances that are sufficiently massive to produce highly Lorentz-boosted top quarks, which yield collimated decay products that are partially or fully merged into single jets. The analysis uses new methods to analyze jet substructure, providing suppression of the non-top multijet backgrounds. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 5 fb− 1. Upper limits in the range of 1 pb are set on the product of the production cross section and branching fraction for a topcolor Z′ modeled for several widths, as well as for a Randall-Sundrum Kaluza-Klein gluon. In addition, the result contrain any enhancement in production beyond expectations of the standard mode for tt invariant mass larger …
Total citations
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S Chatrchyan, V Khachatryan, AM Sirunyan… - Journal of High Energy Physics, 2012