Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Jan 2013Embargo end date: 01 Jan 2013 United States, United States, Spain, United Kingdom, Croatia, Italy, Belgium, Italy, Belgium, Italy, Italy, Italy, Germany, France, United Kingdom, Spain, Italy, Italy, United States, Italy, Italy, Greece, Italy, Italy, Switzerland, Turkey, Italy, Italy, Spain, Italy, United Kingdom, Portugal, Italy, Italy, Brazil, Belgium, Italy, Belgium, Italy, Italy, Hungary, Germany, Italy, Italy, France, Italy, France English Publisher:Elsevier BVJournal:Physics Letters B, volume 718, pages 1,252-1,272 (issn: 0370-2693,

Copyright policy )Funded by:SNSF | Search for the Higgs boso..., NSF | Computation with Uncertai..., SNSF | High pT Physics with CMS ...

Authors: Chatrchyan, S; Khachatryan, V; Sirunyan, AM; Tumasyan, A; Adam, W; Aguilo, E; Bergauer, T; +193 Authors

Chatrchyan, S; Khachatryan, V; Sirunyan, AM; Tumasyan, A; Adam, W; Aguilo, E; Bergauer, T; Dragicevic, M; Erö, J; Fabjan, C; Friedl, M; Frühwirth, R; Ghete, VM; Hammer, J; Hörmann, N; Hrubec, J; Jeitler, M; Kiesenhofer, W; Knünz, V; Krammer, M; Liko, D; Mikulec, I; Pernicka, M; Rahbaran, B; Rohringer, C; Rohringer, H; Schöfbeck, R; Strauss, J; Taurok, A; Wagner, P; Waltenberger, W; Walzel, G; Widl, E; Wulz, CE; Mossolov, V; Shumeiko, N; Suarez Gonzalez, J; Bansal, S; Cornelis, T; De Wolf, EA; Janssen, X; Luyckx, S; Mucibello, L; Ochesanu, S; Roland, B; Rougny, R; Selvaggi, M; Staykova, Z; Van Haevermaet, H; Van Mechelen, P; Van Remortel, N; Van Spilbeeck, A; Blekman, F; Blyweert, S; DʼHondt, J; Gonzalez Suarez, R; Kalogeropoulos, A; Maes, M; Olbrechts, A; Van Doninck, W; Van Mulders, P; Van Onsem, GP; Villella, I; Clerbaux, B; De Lentdecker, G; Dero, V; Gay, APR; Hreus, T; Léonard, A; Marage, PE; Reis, T; Thomas, L; Vander Velde, C; Vanlaer, P; Wang, J; Adler, V; Beernaert, K; Cimmino, A; Costantini, S; Garcia, G; Grunewald, M; Klein, B; Lellouch, J; Marinov, A; Mccartin, J; Ocampo Rios, AA; Ryckbosch, D; Strobbe, N; Thyssen, F; Tytgat, M; Verwilligen, P; Walsh, S; Yazgan, E; Zaganidis, N; Basegmez, S; Bruno, G; Castello, R; Ceard, L; Delaere, C; du Pree, T; Favart, D; Forthomme, L; Giammanco, A; Hollar, J; Lemaitre, V; Liao, J; Militaru, O; Nuttens, C; Pagano, D; Pin, A; Piotrzkowski, K; Schul, N; Vizan Garcia, JM; Beliy, N; Caebergs, T; Daubie, E; Hammad, GH; Alves, GA; Correa Martins Junior, M; De Jesus Damiao, D; Martins, T; Pol, ME; Souza, MHG; Aldá Júnior, WL; Carvalho, W; Custódio, A; Da Costa, EM; De Oliveira Martins, C; Fonseca De Souza, S; Matos Figueiredo, D; Mundim, L; Nogima, H; Oguri, V; Prado Da Silva, WL; Santoro, A; Soares Jorge, L; Sznajder, A; Bernardes, CA; Dias, FA; Fernandez Perez Tomei, TR; Gregores, EM; Lagana, C; Marinho, F; Mercadante, PG; Novaes, SF; Padula Sandra, S; Genchev, V; Iaydjiev, P; Piperov, S; Rodozov, M; Stoykova, S; Sultanov, G; Tcholakov, V; Trayanov, R; Vutova, M; Dimitrov, A; Hadjiiska, R; Kozhuharov, V; Litov, L; Pavlov, B; Petkov, P; Bian, JG; Chen, GM; Chen, HS; Jiang, CH; Liang, D; Liang, S; Meng, X; Tao, J; Wang, J; Wang, X; Wang, Z; Xiao, H; Xu, M; Zang, J; Zhang, Z; Asawatangtrakuldee, C; Ban, Y; Guo, S; Guo, Y; Li, W; Liu, S; Mao, Y; Qian, SJ; Teng, H; Wang, D; Zhang, L; Zhu, B; Zou, W; Avila, C; Gomez, JP; Gomez Moreno, B; Osorio Oliveros, AF; Sanabria, JC; Godinovic, N; Lelas, D; Plestina, R; Polic, D; Puljak, I; Antunovic, Z;

doi: 10.1016/j.physletb.2012.12.045 , 10.3929/ethz-b-000065329 , 10.48550/arxiv.1208.0957

arXiv: 1208.0957

Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV

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Abstract

The results of a search for flavor changing neutral currents in top quark decays t→Zq in events with a topology compatible with the decay chain tt̄→Wb+Zq→ℓνb+ℓℓq are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 fb-1 of proton-proton collisions at a center-of-mass energy of 7 TeV, collected with the CMS detector at the LHC. The observed number of events agrees with the standard model prediction and no evidence for flavor changing neutral currents in top quark decays is found. A t→Zq branching fraction greater than 0.21% is excluded at the 95% confidence level.

Physics Letters B, 718 (4-5)

ISSN:0370-2693

ISSN:0031-9163

ISSN:1873-2445

Countries

United States, United States, Spain, United Kingdom, Croatia, Italy, Belgium, Italy, Belgium, Italy, Italy, Italy, Germany, France, United Kingdom, Spain, Italy, Italy, United States, Italy, Italy, Greece, Italy, Italy, Switzerland, Turkey, Italy, Italy, Spain, Italy, United Kingdom, Portugal, Italy, Italy, Brazil, Belgium, Italy, Belgium, Italy, Italy, Hungary, Germany, Italy, Italy, France, Italy, France

Related Organizations

Helmholtz Association of German Research Centres
Germany
University of Pisa
Italy
University of California, San Diego
United States
University of Rochester
United States
University of Antwerp
Belgium

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Keywords

Nuclear and High Energy Physics, 550, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], cms, FOS: Physical sciences, top, 530, PARTICLE PHYSICS; LARGE HADRON COLLIDER; CMS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), CMS; Physics; Top; Searches, high energy collider; LHC; CMS; flavour changing neutral currents, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], physics; cms; searches; top, Physic, info:eu-repo/classification/ddc/530, Fisica delle particelle, CMS, Physics, ddc:530, Física, Top, CMS; Physics; Searches; Top; Nuclear and High Energy Physics, LARGE HADRON COLLIDER, CMS; physics; top; searches, CMS; Physics; Searches; Top;, CMS, Physics, Searches, Top, CMS; LHC, QC Physics / fizika, Physique des particules élémentaires, searches, PARTICLE PHYSICS, CMS; LHC; HEP, Searches, physics, Particle Physics - Experiment, ddc: ddc:530

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