Data di Pubblicazione:
2014
Abstract:
A search is performed for a massive new vector-like quark T, with charge 2/3, that is pair produced together with its antiparticle in proton-proton collisions. The data were collected by the CMS experiment at the Large Hadron Collider in 2012 at root s = 8 TeV and correspond to an integrated luminosity of 19.5 fb(-1). The T quark is assumed to decay into three different final states, bW, tZ, and tH. The search is carried out using events with at least one isolated lepton. No deviations from standard model expectations are observed, and lower limits are set on the T quark mass at 95% confidence level. The lower limit lies between 687 and 782 GeV for all possible values of the branching fractions into the three different final states assuming strong production. These limits are the most stringent constraints to date on the existence of such a quark.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
Chatrchyan S; Khachatryan V; Sirunyan AM; Tumasyan A; Adam W; Bergauer T; Dragicevic M; Ero J; Fabjan C; Friedl M; Fruhwirth R; Ghete VM; Hartl C; Hormann N; Hrubec J; Jeitler M; Kiesenhofer W; Knunz V; Krammer M; Kratschmer I; Liko D; Mikulec I; Rabady D; Rahbaran B; Rohringer H; Schofbeck R; Strauss J; Taurok A; Treberer-Treberspurg W; Waltenberger W; Wulz CE; Mossolov V; Shumeiko N; Gonzalez JS; Alderweireldt S; Bansal M; Bansal S; Cornelis T; De Wolf EA; Janssen X; Knutsson A; Luyckx S; Mucibello L; Ochesanu S; Roland B; Rougny R; Van Haevermaet H; Van Mechelen P; Van Remortel N; Van Spilbeeck A; Blekman F; Blyweert S; D'Hondt J; Heracleous N; Kalogeropoulos A; Keaveney J; Kim TJ; Lowette S; Maes M; Olbrechts A; Strom D; Tavernier S; Van Doninck W; Van Mulders P; Van Onsem GP; Villella I; Caillol C; Clerbaux B; De Lentdecker G; Favart L; Gay APR; Hreus T; Leonard A; Marage RE; Mohammadi A; Pernie L; Reis T; Seva T; Thomas L; Vander Velde C; Vanlaer R; Wang J; Adler V; Beernaert K; Benucci L; Cimmino A; Costantini S; Dildick S; Garcia G; Klein B; Lellouch J; Mccartin J; Rios AAO; Ryckbosch D; Diblen SS; Sigamani M; Strobbe N; Thyssen F; Tytgat M; Walsh S; Yazgan E; Zaganidis N; Basegmez S; Beluffi C; Bruno G; Castello R; Caudron A; Ceard L; Da Silveira GG; Delaere C; du Pree T; Favart D; Forthomme L; Giammanco A; Hollar J; Jez P; Komm M; Lemaitre V; Liao J; Militaru O; Nuttens C; Pagano D; Pin A; Piotrzkowski K; Popov A; Quertenmont L; Selvaggi M; Marono MV; Garcia JMV; Beliy N; Caebergs T; Daubie E; Hammad GH; Alves GA; Martins MC; Martins T; Pol ME; Souza MHG; Alda WL; Carvalho W; Chinellato J; Custodio A; Da Costa EM; Damiao DD; Martins CD; De Souza SF; Malbouisson H; Malek M; Figueiredo DM; Mundim L; Nogima H; Da Silva WLP; Santaolalla J; Santoro A; Sznajder A; Manganote EJT; Pereira AV; Bernardes CA; Dias FA; Tomei TRFP; Gregores EM; Lagana C; Mercadante PG; Novaes SF; Padula SS; Genchev V; Iaydjiev P; Marinov A; Piperov S; Rodozov M; Sultanov G; Vutova M; Dimitrov A; Glushkov I; Hadjiiska R; Kozhuharov V; Litov L; Pavlov B; Petkov P; Bian JG; Chen GM; Chen HS; Chen M; Du R; Jiang CH; Liang D; Liang S; Meng X; Plestina R; Tao J; Wang X; Wang Z; Asawatangtrakuldee C; Ban Y; Guo Y; Li Q; Li W; Liu S; Mao Y; Qian SJ; Wang D; Zhang L; Zou W; Avila C; Montoya CAC; Sierra LFC; Florez C; Gomez JP; Moreno BG; Sanabria JC; Godinovic N; Lelas D; Polic D; Puljak I; Antunovic Z; Kovac M; Brigljevic V; Kadija K; Luetic J; Mekterovic D; Morovic S; Tikvica L; Attikis A; Mavromanolakis G; Mousa J; Nicolaou C; Ptochos F; Razis PA; Finger M; Finger M; Abdelalim AA; Assran Y; Elgammal S; Kamel AE; Mahmoud MA; Radi A; Kadastik M; Muntel M; Murumaa M; Raidal M; Rebane L; Tiko A; Eerola P; Fedi G; Voutilainen M; Harkonen J; Karimaki V; Kinnunen R; Kortelainen MJ; Lampen T; Lassila-Perini K; Lehti S; Linden T; Luukka P; Maenpaa T; Peltola T; Tuominen E; Tuominiemi J; Tuovinen E; Wendland L; Tuuva T; Besancon M; Couderc F; Dejardin M; Denegri D; Fabbro B; Faure JL; Ferri F; Ganjour S; Givernaud A; Gras P; de Monchenault GH; Jarry P; Locci E; Malcles J; Nayak A; Rander J; Rosowsky A; Titov M; Baffioni S; Beaudette F; Busson P; Chariot C; Daci N; Dahms T; Dalchenko M; Dobrzynski L; Florent A; de Cassagnac RG; Haguenauer M; Mine P; Mironov C; Naranjo IN; Nguyen M; Ochando C; Paganini P; Sabes D; Salerno R; Sirois Y; Veelken C; Yilmaz Y; Zabi A; Agram JL; Andrea J; Bloch D; Brom JM; Chabert EC; Collard C; Conte E; Drouhin F; Fontaine JC; Gele D; Goerlach U; Goetzmann C; Juillot P; Le Bihan AC; Van Hove P; Gadrat S; Beauceron S; Beaupere N; Boudoul G; Brochet S; Chasserat J; Chierici R; Contardo D; Depasse P; El Mamouni H; Fan
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