Search for a Vectorlike Quark with Charge 2/3 in t plus Z Events from pp Collisions at sqrt(s)= 7 TeV
Articolo
Data di Pubblicazione:
2011
Abstract:
A search for pair-produced heavy vectorlike charge-2/3 quarks, T, in pp collisions at a center-of-mass energy of 7 TeV, is performed with the CMS detector at the LHC. Events consistent with the flavor-changing-neutral-current decay of a T quark to a top quark and a Z boson are selected by requiring two leptons from the Z-boson decay, as well as an additional isolated charged lepton. In a data sample corresponding to an integrated luminosity of 1.14 fb(-1), the number of observed events is found to be consistent with the standard model background prediction. Assuming a branching fraction of 100% for the decay T -> tZ, a T quark with a mass less than 475 GeV/c(2) is excluded at the 95% confidence level.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
S. Chatrchyan;V. Khachatryan;A. M. Sirunyan;A. Tumasyan;W. Adam;T. Bergauer;M. Dragicevic;J. Eroe;C. Fabjan;M. Friedl;R. Fruehwirth;V. M. Ghete;J. Hammer;S. Haensel;M. Hoch;N. Hoermann;J. Hrubec;M. Jeitler;W. Kiesenhofer;M. Krammer;D. Liko;I. Mikulec;M. Pernicka;B. Rahbaran;H. Rohringer;R. Schoefbeck;J. Strauss;A. Taurok;F. Teischinger;C. Trauner;P. Wagner;W. Waltenberger;G. Walzel;E. Widl;C. E. Wulz;V. Mossolov;N. Shumeiko;J. S. Gonzalez;S. Bansal;L. Benucci;E. A. De;X. Janssen;S. Luyckx;T. Maes;L. Mucibello;S. Ochesanu;B. Roland;R. Rougny;M. Selvaggi;H. V. Haevermaet;P. V. Mechelen;N. V. Remortel;F. Blekman;S. Blyweert;J. D'Hondt;R. G. Suarez;A. Kalogeropoulos;M. Maes;A. Olbrechts;W. V. Doninck;P. V. Mulders;G. P. Van;I. Villella;O. Charaf;B. Clerbaux;G. D. Lentdecker;V. Dero;A. P. R.;G. H. Hammad;T. Hreus;P. E. Marage;A. Raval;L. Thomas;G. V. Marcken;C. V. Velde;P. Vanlaer;V. Adler;A. Cimmino;S. Costantini;M. Grunewald;B. Klein;J. Lellouch;A. Marinov;J. Mccartin;D. Ryckbosch;F. Thyssen;M. Tytgat;L. Vanelderen;P. Verwilligen;S. Walsh;N. Zaganidis;S. Basegmez;G. Bruno;J. Caudron;L. Ceard;E. C. Gil;J. D. Favereau;C. Delaere;D. Favart;A. Giammanco;G. Gregoire;J. Hollar;V. Lemaitre;J. Liao;O. Militaru;C. Nuttens;S. Ovyn;D. Pagano;A. Pin;K. Piotrzkowski;N. Schul;N. Beliy;T. Caebergs;E. Daubie;G. A. Alves;L. Brito;D. D. Jesus;M. E. Pol;M. H. G.;W. L. Alda;W. Carvalho;E. M. Da;C. D. Oliveira;S. F. De;D. M. Figueiredo;L. Mundim;H. Nogima;V. Oguri;W. L. Prado;A. Santoro;S. M. Silva;A. Sznajder;T. S. Anjos;C. A. Bernardes;F. A. Dias;T. R. Fernandez;E. M. Gregores;C. Lagana;F. Marinho;P. G. Mercadante;S. F. Novaes;S. S. Padula;N. Darmenov;V. Genchev;P. Iaydjiev;S. Piperov;M. Rodozov;S. Stoykova;G. Sultanov;V. Tcholakov;R. Trayanov;M. Vutova;A. Dimitrov;R. Hadjiiska;A. Karadzhinova;V. Kozhuharov;L. Litov;M. Mateev;B. Pavlov;P. Petkov;J. G. Bian;G. M. Chen;H. S. Chen;C. H. Jiang;D. Liang;S. Liang;X. Meng;J. Tao;J. Wang;J. Wang;X. Wang;Z. Wang;H. Xiao;M. Xu;J. Zang;Z. Zhang;Y. Ban;S. Guo;Y. Guo;W. Li;Y. Mao;S. J. Qian;H. Teng;B. Zhu;W. Zou;A. Cabrera;B. G. Moreno;A. A. Ocampo;A. F. Osorio;J. C. Sanabria;N. Godinovic;D. Lelas;K. Lelas;R. Plestina;D. Polic;I. Puljak;Z. Antunovic;M. Dzelalija;M. Kovac;V. Brigljevic;S. Duric;K. Kadija;J. Luetic;S. Morovic;A. Attikis;M. Galanti;J. Mousa;C. Nicolaou;F. Ptochos;P. A. Razis;M. Finger;M. F. Jr.;Y. Assran;A. E. Kamel;S. Khalil;M. A. Mahmoud;A. Radi;A. Hektor;M. Kadastik;M. Muentel;M. Raidal;L. Rebane;A. Tiko;V. Azzolini;P. Eerola;G. Fedi;M. Voutilainen;S. Czellar;J. Harkonen;A. Heikkinen;V. Karimaki;R. Kinnunen;M. J. Kortelainen;T. Lampen;K. Lassila-Perini;S. Lehti;T. Linden;P. Luukka;T. Maenpaa;E. Tuominen;J. Tuominiemi;E. Tuovinen;D. Ungaro;L. Wendland;K. Banzuzi;A. Karjalainen;A. Korpela;T. Tuuva;D. Sillou;M. Besancon;S. Choudhury;M. Dejardin;D. Denegri;B. Fabbro;J. L. Faure;F. Ferri;S. Ganjour;A. Givernaud;P. Gras;G. H. de;P. Jarry;E. Locci;J. Malcles;M. Marionneau;L. Millischer;J. Rander;A. Rosowsky;I. Shreyber;M. Titov;S. Baffioni;F. Beaudette;L. Benhabib;L. Bianchini;M. Bluj;C. Broutin;P. Busson;C. Charlot;T. Dahms;L. Dobrzynski;S. Elgammal;R. G. de;M. Haguenauer;P. Mine;C. Mironov;C. Ochando;P. Paganini;D. Sabes;R. Salerno;Y. Sirois;C. Thiebaux;C. Veelken;A. Zabi;J. L. Agram;J. Andrea;D. Bloch;D. Bodin;J. M. Brom;M. Cardaci;E. C. Chabert;C. Collard;E. Conte;F. Drouhin;C. Ferro;J. C. Fontaine;D. Gele;U. Goerlach;S. Greder;P. Juillot;M. Karim;A. C. Le;Y. Mikami;P. V. Hove;F. Fassi;D. Mercier;C. Baty;S. Beauceron;N. Beaupere;M. Bedjidian;O. Bondu;G. Boudoul;D. Boumediene;H. Brun;J. Chasserat;R. Chierici;D. Contardo;P. Depasse;H. E. Mamouni;J. Fay;S. Gascon;B. Ille;T. K
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