A search is reported for massive resonances decaying into a quark and a vector boson (W or Z), or two vector bosons (WW, WZ, or ZZ). The analysis is performed on an inclusive sample of multijet events corresponding to an integrated luminosity of 19.7 fb−1, collected in proton-proton collisions at a centre-of-mass energy of 8TeV with the CMS detector at the LHC. The search uses novel jet-substructure identification techniques that provide sensitivity to the presence of highly boosted vector bosons decaying into a pair of quarks. Exclusion limits are set at a confidence level of 95% on the production of: (i) excited quark resonances q decaying to qW and qZ for masses less than 3.2TeV and 2.9TeV, respectively, (ii) a Randall-Sundrum graviton GRS decaying into WW for masses below 1.2TeV, and (iii) a heavy partner of the W boson W 0 decaying into WZ for masses less than 1.7TeV. For the first time mass limits are set on W 0 ! WZ and GRS ! WW in the all-jets final state. The mass limits on q ! qW, q ! qZ, W 0 ! WZ, GRS ! WW are the most stringent to date. A model with a “bulk” graviton Gbulk that decays into WW or ZZ bosons is also studied.
Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV / S Chatrchyan; V Khachatryan; A M Sirunyan; A Tumasyan; W Adam; T Bergauer; M Dragicevic; J Erö; C Fabjan; M Friedl; R Frühwirth; V M Ghete; C Hartl; N Hörmann; J Hrubec; M Jeitler; W Kiesenhofer; V Knünz; M Krammer; I Krätschmer; D Liko; I Mikulec; D Rabady; B Rahbaran; H Rohringer; R Schöfbeck; J Strauss; A Taurok; W Treberer-Treberspurg; W Waltenberger; C -E Wulz; V Mossolov; N Shumeiko; J Suarez Gonzalez; S Alderweireldt; M Bansal; S Bansal; T Cornelis; E A De Wolf; X Janssen; A Knutsson; S Luyckx; S Ochesanu; B Roland; R Rougny; H Van Haevermaet; P Van Mechelen; N Van Remortel; A Van Spilbeeck; F Blekman; S Blyweert; J D’Hondt; N Heracleous; A Kalogeropoulos; J Keaveney; T J Kim; S Lowette; M Maes; A Olbrechts; D Strom; S Tavernier; W Van Doninck; P Van Mulders; G P Van Onsem; I Villella; C Caillol; B Clerbaux; G De Lentdecker; L Favart; A P R Gay; A Léonard; P E Marage; A Mohammadi; L Perniè; T Reis; T Seva; L Thomas; C Vander Velde; P Vanlaer; J Wang; V Adler; K Beernaert; L Benucci; A Cimmino; S Costantini; S Crucy; S Dildick; G Garcia; B Klein; J Lellouch; J Mccartin; A A Ocampo Rios; D Ryckbosch; S Salva Diblen; M Sigamani; N Strobbe; F Thyssen; M Tytgat; S Walsh; E Yazgan; N Zaganidis; S Basegmez; C Beluffi; G Bruno; R Castello; A Caudron; L Ceard; G G Da Silveira; C Delaere; T du Pree; D Favart; L Forthomme; A Giammanco; J Hollar; P Jez; M Komm; V Lemaitre; J Liao; O Militaru; C Nuttens; D Pagano; A Pin; K Piotrzkowski; A Popov; L Quertenmont; M Selvaggi; M Vidal Marono; J M Vizan Garcia; N Beliy; T Caebergs; E Daubie; G H Hammad; G A Alves; M Correa Martins Junior; T Dos Reis Martins; M E Pol; M H G Souza; W L Aldá Júnior; W Carvalho; J Chinellato; A Custódio; E M Da Costa; D De Jesus Damiao; C De Oliveira Martins; S Fonseca De Souza; H Malbouisson; M Malek; D Matos Figueiredo; L Mundim; H Nogima; W L Prado Da Silva; J Santaolalla; A Santoro; A Sznajder; E J Tonelli Manganote; A Vilela Pereira; C A Bernardesb; F A Diasa; T R Fernandez Perez Tomeia; E M Gregoresb; P G Mercadanteb; S F Novaesa; Sandra S Padula; V Genchev; P Iaydjiev; A Marinov; S Piperov; M Rodozov; G Sultanov; M Vutova; A Dimitrov; I Glushkov; R Hadjiiska; V Kozhuharov; L Litov; B Pavlov; P Petkov; J G Bian; G M Chen; H S Chen; M Chen; R Du; C H Jiang; D Liang; S Liang; X Meng; R Plestina8; J Tao; X Wang; Z Wang; C Asawatangtrakuldee; Y Ban; Y Guo; Q Li; W Li; S Liu; Y Mao; S J Qian; D Wang; L Zhang; W Zou; C Avila; L F Chaparro Sierra; C Florez; J P Gomez; B Gomez Moreno; J C Sanabria; N Godinovic; D Lelas; D Polic; I Puljak; Z Antunovic; M Kovac; V Brigljevic; K Kadija; J Luetic; D Mekterovic; S Morovic; L Sudic; A Attikis; G Mavromanolakis; J Mousa; C Nicolaou; F Ptochos; P A Razis; M Finger; M Finger Jr ; Y Assran; S Elgammal; A Ellithi Kamel; M A Mahmoud; A Mahrous; A Radi; M Kadastik; M Müntel; M Murumaa; M Raidal; A Tiko; P Eerola; G Fedi; M Voutilainen; J Härkönen; V Karimäki; R Kinnunen; M J Kortelainen; T Lampén; K Lassila-Perini; S Lehti; T Lindén; P Luukka; T Mäenpää; T Peltola; E Tuominen; J Tuominiemi; E Tuovinen; L Wendland; T Tuuva; M Besancon; F Couderc; M Dejardin; D Denegri; B Fabbro; J L Faure; F Ferri; S Ganjour; A Givernaud; P Gras; G Hamel de Monchenault; P Jarry; E Locci; J Malcles; A Nayak; J Rander; A Rosowsky; M Titov; S Baffioni; F Beaudette; P Busson; C Charlot; N Daci; T Dahms; M Dalchenko; L Dobrzynski; N Filipovic; A Florent; R Granier de Cassagnac; L Mastrolorenzo; P Miné; C Mironov; I N Naranjo; M Nguyen; C Ochando; P Paganini; D Sabes; R Salerno; J B Sauvan; Y Sirois; C Veelken; Y Yilmaz; A Zabi; J -L Agram; J Andrea; D Bloch; J -M Brom; E C Chabert; C Collard; E Conte; F Drouhin; J -C Fontaine; D Gelé; U Goerlach; C Goetzmann; P Juillot; A -C Le Bihan; P Van Hove; S Gadrat; S Beauceron; N Beaupere; G Boudoul; S Brochet; C A Carrillo Montoya; J Chasserat; R Chierici; D Contardo; P Depasse; H El Mamouni; J Fan; J Fay; S Gascon; M Gouzevitch; B Ille; T Kurca; M Lethuillier; L Mirabito; S Perries; J D Ruiz Alvarez; L Sgandurra; V Sordini; M Vander Donckt; P Verdier; S Viret; H Xiao; Z Tsamalaidze; C Autermann; S Beranek; M Bontenackels; B Calpas; M Edelhoff; L Feld; O Hindrichs; K Klein; A Ostapchuk; A Perieanu; F Raupach; J Sammet; S Schael; D Sprenger; H Weber; B Wittmer; V Zhukov; M Ata; J Caudron; E Dietz-Laursonn; D Duchardt; M Erdmann; R Fischer; A Güth; T Hebbeker; C Heidemann; K Hoepfner; D Klingebiel; S Knutzen; P Kreuzer; M Merschmeyer; A Meyer; M Olschewski; K Padeken; P Papacz; H Reithler; S A Schmitz; L Sonnenschein; D Teyssier; S Thüer; M Weber; V Cherepanov; Y Erdogan; G Flügge; H Geenen; M Geisler; W Haj Ahmad; F Hoehle; B Kargoll; T Kress; Y Kuessel; J Lingemann; A Nowack; I M Nugent; L Perchalla; O Pooth; A Stahl; I Asin; N Bartosik; J Behr; W Behrenhoff; U Behrens; A J Bell; M Bergholz; A Bethani; K Borras; A Burgmeier; A Cakir; L Calligaris; A Campbell; S Choudhury; F Costanza; C Diez Pardos; S Dooling; T Dorland; G Eckerlin; D Eckstein; T Eichhorn; G Flucke; A Geiser; A Grebenyuk; P Gunnellini; S Habib; J Hauk; G Hellwig; M Hempel; D Horton; H Jung; M Kasemann; P Katsas; J Kieseler; C Kleinwort; M Krämer; D Krücker; W Lange; J Leonard; K Lipka; W Lohmann; B Lutz; R Mankel; I Marfin; I -A Melzer-Pellmann; A B Meyer; J Mnich; A Mussgiller; S Naumann-Emme; O Novgorodova; F Nowak; E Ntomari; H Perrey; A Petrukhin; D Pitzl; R Placakyte; A Raspereza; P M Ribeiro Cipriano; C Riedl; E Ron; M Ö Sahin; J Salfeld-Nebgen; P Saxena; R Schmidt; T Schoerner-Sadenius; M Schröder; M Stein; A D R Vargas Trevino; R Walsh; C Wissing; M Aldaya Martin; V Blobel; H Enderle; J Erfle; E Garutti; K Goebel; M Görner; M Gosselink; J Haller; R S Höing; H Kirschenmann; R Klanner; R Kogler; J Lange; T Lapsien; T Lenz; I Marchesini; J Ott; T Peiffer; N Pietsch; D Rathjens; C Sander; H Schettler; P Schleper; E Schlieckau; A Schmidt; M Seidel; J Sibille; V Sola; H Stadie; G Steinbrück; D Troendle; E Usai; L Vanelderen; C Barth; C Baus; J Berger; C Böser; E Butz; T Chwalek; W De Boer; A Descroix; A Dierlamm; M Feindt; M Guthoff; F Hartmann; T Hauth; H Held; K H Hoffmann; U Husemann; I Katkov; A Kornmayer; E Kuznetsova; P Lobelle Pardo; D Martschei; M U Mozer; Th Müller; M Niegel; A Nürnberg; O Oberst; G Quast; K Rabbertz; F Ratnikov; S Röcker; F -P Schilling; G Schott; H J Simonis; F M Stober; R Ulrich; J Wagner-Kuhr; S Wayand; T Weiler; R Wolf; M Zeise; G Anagnostou; G Daskalakis; T Geralis; S Kesisoglou; A Kyriakis; D Loukas; A Markou; C Markou; A Psallidas; I Topsis-Giotis; L Gouskos; A Panagiotou; N Saoulidou; E Stiliaris; X Aslanoglou; I Evangelou; G Flouris; C Foudas; J Jones; P Kokkas; N Manthos; I Papadopoulos; E Paradas; G Bencze; C Hajdu; P Hidas; D Horvath; F Sikler; V Veszpremi; G Vesztergombi; A J Zsigmond; N Beni; S Czellar; J Molnar; J Palinkas; Z Szillasi; J Karancsi; P Raics; Z L Trocsanyi; B Ujvari; S K Swain; S B Beri; V Bhatnagar; N Dhingra; R Gupta; M Kaur; M Mittal; N Nishu; A Sharma; J B Singh; Ashok Kumar; Arun Kumar; S Ahuja; A Bhardwaj; B C Choudhary; A Kumar; S Malhotra; M Naimuddin; K Ranjan; V Sharma; R K Shivpuri; S Banerjee; S Bhattacharya; K Chatterjee; S Dutta; B Gomber; Sa Jain; Sh Jain; R Khurana; A Modak; S Mukherjee; D Roy; S Sarkar; M Sharan; A P Singh; A Abdulsalam; D Dutta; S Kailas; V Kumar; A K Mohanty; L M Pant; P Shukla; A Topkar; T Aziz; S Banerjee; R M Chatterjee; S Dugad; S Ganguly; S Ghosh; M Guchait; A Gurtu; G Kole; S Kumar; M Maity; G Majumder; K Mazumdar; G B Mohanty; B Parida; K Sudhakar; N Wickramage; H Arfaei; H Bakhshiansohi; H Behnamian; S M Etesami; A Fahim; A Jafari; M Khakzad; M Mohammadi Najafabadi; M Naseri; S Paktinat Mehdiabadi; B Safarzadeh; M Zeinali; M Grunewald; M Abbrescia; L Barbone; C Calabria; S S Chhibra; A Colaleo; D Creanza; N De Filippis; M De Palma; L Fiore; G Iaselli; G Maggi; M Maggi; B Marangelli; S My; S Nuzzo; N Pacifico; A Pompili; G Pugliese; R Radogna; G Selvaggi; L Silvestris; G Singh; R Venditti; P Verwilligen; G Zitoa; G Abbiendi; A C Benvenuti; D Bonacorsi; S Braibant; L Brigliadori; R Campanini; P Capiluppi; A Castro; F R Cavallo; G Codispoti; M Cuffiani; G M Dallavalle; F Fabbri; A Fanfani; D Fasanella; P Giacomelli; C Grandi; L Guiducci; S Marcellini; G Masetti; M Meneghelli; A Montanari; F L Navarria; F Odorici; A Perrotta; F Primavera; A M Rossi; T Rovelli; G P Siroli; N Tosi; R Travaglini; S Albergo; G Cappello; M Chiorboli; S Costa; F Giordanoa; R Potenza; A Tricomi; C Tuve; G Barbagli; V Ciulli; C Civinini; R D’Alessandro; E Focardi; E Gallo; S Gonzi; V Gori; P Lenzi; M Meschini; S Paoletti; G Sguazzoni; A Tropiano; L Benussi; S Bianco; F Fabbri; D Piccolo; P Fabbricatore; R Ferretti; F Ferro; M Lo Vetere; R Musenich; E Robutti; S Tosi; M E Dinardo; S Fiorendi; S Gennai; R Geros; A Ghezzi; P Govoni; M T Lucchini; S Malvezzi; R A Manzonia; A Martellia; B Marzocchi; D Menasce; L Moroni; M Paganoni; D Pedrini; S Ragazzi; N Redaelli; T Tabarelli de Fatis; S Buontempo; N Cavallo; S Di Guida; F Fabozzi; A O M Iorio; L Lista; S Meola; M Merola; P Paolucci; P Azzi; M Bellato; M Biasotto; D Bisello; A Branca; P Checchia; T Dorigo; U Dosselli; F Fanzago; M Galanti; F Gasparini; U Gasparini; P Giubilato; F Gonella; A Gozzelino; K Kanishchev; S Lacaprara; I Lazzizzera; M Margoni; A T Meneguzzo; J Pazzini; N Pozzobon; P Ronchese; F Simonetto; E Torassa; M Tosi; P Zotto; A Zucchetta; G Zumerle; M Gabusi; S P Ratti; C Riccardi; P Salvini; P Vitulo; M Biasini; G M Bilei; L Fanò; P Lariccia; G Mantovani; M Menichelli; F Romeo; A Saha; A Santocchia; A Spiezi; K Androsov; P Azzurri; G Bagliesi; J Bernardini; T Boccali; G Broccolo; R Castaldi; M A Ciocci; R Dell’Orso; S Donato; F Fiori; L Foà; A Giassi; M T Grippo; A Kraan; F Ligabue; T Lomtadze; L Martini; A Messineo; C S Moon; F Palla; A Rizzi; A Savoy-Navarro; A T Serban; P Spagnolo; P Squillacioti; R Tenchini; G Tonelli; A Venturi; P G Verdini; C Vernieri; L Barone; F Cavallari; D Del Re; M Diemoz; M Grassi; C Jorda; E Longo; F Margaroli; P Meridiani; F Micheli; S Nourbakhsh; G Organtini; R Paramatti; S Rahatlou; C Rovelli; L Soffi; P Traczyk; N Amapane; R Arcidiacono; S Argiro; M Arneodo; R Bellana; C Biino; N Cartiglia; S Casasso; M Costa; A Degano; N Demaria; C Mariotti; S Maselli; E Migliore; V Monaco; M Musich; M M Obertino; G Ortona; L Pacher; N Pastrone; M Pelliccioni; A Potenza; A Romero; M Ruspa; R Sacchi; A Solano; A Staiano; U Tamponi; S Belforte; V Candelise; M Casarsa; F Cossutti; G Della Ricca; B Gobbo; C La Licata; M Marone; D Montanino; A Penzo; A Schizzi; T Umer; A Zanetti; S Chang; T Y Kim; S K Nam; D H Kim; G N Kim; J E Kim; M S Kim; D J Kong; S Lee; Y D Oh; H Park; A Sakharov; D C Son; J Y Kim; Zero J Kim; S Song; S Choi; D Gyun; B Hong; M Jo; H Kim; Y Kim; B Lee; K S Lee; S K Park; Y Roh; M Choi; J H Kim; C Park; I C Park; S Park; G Ryu; Y Choi; Y K Choi; J Goh; E Kwon; J Lee; H Seo; I Yu; A Juodagalvis; J R Komaragiri; H Castilla-Valdez; E De La Cruz-Burelo; I Heredia-de La Cruz; R Lopez-Fernandez; J Martínez-Ortega; A Sanchez-Hernandez; L M Villasenor-Cendeja; S Carrillo Moreno; F Vazquez Valencia; H A Salazar Ibarguen; E Casimiro Linares; A Morelos Pineda; D Krofcheck; P H Butler; R Doesburg; S Reucroft; A Ahmad; M Ahmad; M I Asghar; J Butt; Q Hassan; H R Hoorani; W A Khan; T Khurshid; S Qazi; M A Shah; M Shoaib; H Bialkowska; M Bluj; B Boimska; T Frueboes; M Górski; M Kazana; K Nawrocki; K Romanowska-Rybinska; M Szleper; G Wrochna; P Zalewski; G Brona; K Bunkowski; M Cwiok; W Dominik; K Doroba; A Kalinowski; M Konecki; J Krolikowski; M Misiura; W Wolszczak; P Bargassa; C Beirão Da Cruz E Silva; P Faccioli; P G Ferreira Parracho; M Gallinaro; F Nguyen; J Rodrigues Antunes; J Seixas; J Varela; P Vischia; I Golutvin; V Karjavin; V Konoplyanikov; V Korenkov; G Kozlov; A Lanev; A Malakhov; V Matveev; V V Mitsyn; P Moisenz; V Palichik; V Perelygin; S Shmatov; S Shulha; N Skatchkov; V Smirnov; E Tikhonenko; A Zarubin; V Golovtsov; Y Ivanov; V Kim; P Levchenko; V Murzin; V Oreshkin; I Smirnov; V Sulimov; L Uvarov; S Vavilov; A Vorobyev; An Vorobyev; Yu Andreev; A Dermenev; S Gninenko; N Golubev; M Kirsanov; N Krasnikov; A Pashenkov; D Tlisov; A Toropi; V Epshteyn; V Gavrilov; N Lychkovskaya; V Popov; G Safronov; S Semenov; A Spiridonov; V Stolin; E Vlasov; A Zhokin; V Andreev; M Azarkin; I Dremin; M Kirakosyan; A Leonidov; G Mesyats; S V Rusakov; A Vinogradov; A Belyaev; E Boos; M Dubinin; L Dudko; A Ershov; A Gribushin; V Klyukhin; O Kodolova; I Lokhtin; S Obraztsov; S Petrushanko; V Savrin; A Snigirev; I Azhgirey; I Bayshev; S Bitioukov; V Kachanov; A Kalinin; D Konstantinov; V Krychkine; V Petrov; R Ryutin; A Sobol; L Tourtchanovitch; S Troshin; N Tyurin; A Uzunian; A Volkov; P Adzic; M Dordevic; M Ekmedzic; J Milosevic; M Aguilar-Benitez; J Alcaraz Maestre; C Battilana; E Calvo; M Cerrada; M Chamizo Llatas; N Colino; B De La Cruz; A Delgado Peris; D Domínguez Vázquez; C Fernandez Bedoya; J P Fernández Ramos; A Ferrando; J Flix; M C Fouz; P Garcia-Abia; O Gonzalez Lopez; S Goy Lopez; J M Hernandez; M I Josa; G Merino; E Navarro De Martino; A Pérez-Calero Yzquierdo; J Puerta Pelayo; A Quintario Olmeda; I Redondo; L Romero; M S Soares; C Willmott; C Albajar; J F de Trocóniz; M Missiroli; H Brun; J Cuevas; J Fernandez Menendez; S Folgueras; I Gonzalez Caballero; L Lloret Iglesias; J A Brochero Cifuentes; I J Cabrillo; A Calderon; J Duarte Campderros; M Fernandez; G Gomez; J Gonzalez Sanchez; A Graziano; A Lopez Virto; J Marco; R Marco; C Martinez Rivero; F Matorras; F J Munoz Sanchez; J Piedra Gomez; T Rodrigo; A Y Rodríguez-Marrero; A Ruiz-Jimeno; L Scodellaro; I Vila; R Vilar Cortabitarte; D Abbaneo; E Auffray; G Auzinger; M Bachtis; P Baillon; A H Ball; D Barney; A Benaglia; J Bendavid; L Benhabib; J F Benitez; C Bernet; G Bianchi; P Bloch; A Bocci; A Bonato; O Bondu; C Botta; H Breuker; T Camporesi; G Cerminara; T Christiansen; J A Coarasa Perez; S Colafranceschi; M D’Alfonso; D d’Enterria; A Dabrowski; A David; F De Guio; A De Roeck; S De Visscher; M Dobson; N Dupont-Sagorin; A Elliott-Peisert; J Eugster; G Franzoni; W Funk; M Giffels; D Gigi; K Gill; D Giordano; M Girone; M Giunta; F Glege; R Gomez-Reino Garrido; S Gowdy; R Guida; J Hammer; M Hansen; P Harris; J Hegeman; V Innocente; P Janot; E Karavakis; K Kousouris; K Krajczar; P Lecoq; C Lourenço; N Magini; L Malgeri; M Mannelli; L Masetti; F Meijers; S Mersi; E Meschi; F Moortgat; M Mulders; P Musella; L Orsini; E Palencia Cortezon; L Pape; E Perez; L Perrozzi; A Petrilli; G Petrucciani; A Pfeiffer; M Pierini; M Pimiä; D Piparo; M Plagge; A Racz; W Reece; G Rolandi; M Rovere; H Sakulin; F Santanastasio; C Schäfer; C Schwick; S Sekmen; A Sharma; P Siegrist; P Silva; M Simon; P Sphicas; D Spiga; J Steggemann; B Stieger; M Stoye; D Treille; A Tsirou; G I Veres; J R Vlimant; H K Wöhri; W D Zeuner; W Bertl; K Deiters; W Erdmann; R Horisberger; Q Ingram; H C Kaestli; S König; D Kotlinski; U Langenegger; D Renker; T Rohe; F Bachmair; L Bäni; L Bianchini; P Bortignon; M A Buchmann; B Casal; N Chanon; A Deisher; G Dissertori; M Dittmar; M Donegà; M Dünser; P Eller; C Grab; D Hits; W Lustermann; B Mangano; A C Marini; P Martinez Ruiz del Arbol; D Meister; N Mohr; C Nägeli; P Nef; F Nessi-Tedaldi; F Pandolfi; F Pauss; M Peruzzi; M Quittnat; L Rebane; F J Ronga; M Rossini; A Starodumov; M Takahashi; K Theofilatos; R Wallny; H A Weber; C Amsler; M F Canelli; V Chiochia; A De Cosa; C Favaro; A Hinzmann; T Hreus; M Ivova Rikova; B Kilminster; B Millan Mejias; J Ngadiuba; P Robmann; H Snoek; S Taroni; M Verzetti; Y Yang; M Cardaci; K H Chen; C Ferro; C M Kuo; S W Li; W Lin; Y J Lu; R Volpe; S S Yu; P Bartalini; P Chang; Y H Chang; Y W Chang; Y Chao; K F Chen; P H Chen; C Dietz; U Grundler; W -S Hou; Y Hsiung; K Y Kao; Y J Lei; Y F Liu; R -S Lu; D Majumder; E Petrakou; X Shi; J G Shiu; Y M Tzeng; M Wang; R Wilken; B Asavapibhop; N Suwonjandee; A Adiguzel; M N Bakirci; S Cerci; C Dozen; I Dumanoglu; E Eskut; S Girgis; G Gokbulut; E Gurpinar; I Hos; E E Kangal; 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[10.1007/JHEP08(2014)173]
Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV
BONACORSI, DANIELE;BRAIBANT, SYLVIE;BRIGLIADORI, LUCA;CAMPANINI, RENATO;CAPILUPPI, PAOLO;CASTRO, ANDREA;CODISPOTI, GIUSEPPE;CUFFIANI, MARCO;FANFANI, ALESSANDRA;FASANELLA, DANIELE;GUIDUCCI, LUIGI;PRIMAVERA, FEDERICA;ROVELLI, TIZIANO;SIROLI, GIAN PIERO;TOSI, NICOLÒ;
2014
Abstract
A search is reported for massive resonances decaying into a quark and a vector boson (W or Z), or two vector bosons (WW, WZ, or ZZ). The analysis is performed on an inclusive sample of multijet events corresponding to an integrated luminosity of 19.7 fb−1, collected in proton-proton collisions at a centre-of-mass energy of 8TeV with the CMS detector at the LHC. The search uses novel jet-substructure identification techniques that provide sensitivity to the presence of highly boosted vector bosons decaying into a pair of quarks. Exclusion limits are set at a confidence level of 95% on the production of: (i) excited quark resonances q decaying to qW and qZ for masses less than 3.2TeV and 2.9TeV, respectively, (ii) a Randall-Sundrum graviton GRS decaying into WW for masses below 1.2TeV, and (iii) a heavy partner of the W boson W 0 decaying into WZ for masses less than 1.7TeV. For the first time mass limits are set on W 0 ! WZ and GRS ! WW in the all-jets final state. The mass limits on q ! qW, q ! qZ, W 0 ! WZ, GRS ! WW are the most stringent to date. A model with a “bulk” graviton Gbulk that decays into WW or ZZ bosons is also studied.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.