A search for narrow, high-mass resonances decaying to electron or muon pairs has been performed using pp collision data collected at by the CMS experiment in 2011. The data sample corresponds to an integrated luminosity of approximately 5 fb−1. The event yields observed in the signal regions are consistent with predictions of the standard model backgrounds, and upper limits on the cross section times branching fraction for a resonance decaying to dileptons are extracted from a shape analysis of the dilepton invariant mass distribution. The resulting mass limits at 95% confidence level are 2330 GeV for the Z′ in the Sequential Standard Model, 2000 GeV for the superstring-inspired resonance, 890 (540) GeV for the Stueckelberg extension with the mass parameter ϵ=0.06 (0.04), and 2140 (1810) GeV for Kaluza–Klein gravitons with the coupling parameter of 0.10 (0.05). These limits are the most stringent to date.
Search for narrow resonances in dilepton mass spectra in pp collisions at √s= 7TeV / 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;J. Hammer;N. Hörmann;J. Hrubec;M. Jeitler;W. Kiesenhofer;V. Knünz;M. Krammer;D. Liko;I. Mikulec;M. Pernicka;B. Rahbaran;C. Rohringer;H. Rohringer;R. Schöfbeck;J. Strauss;A. Taurok;P. Wagner;W. Waltenberger;G. Walzel;E. Widl;C.-E. Wulz;V. Mossolov;N. Shumeiko;J. Suarez Gonzalez;S. Bansal;T. Cornelis;E.A. De Wolf;X. Janssen;S. Luyckx;T. Maes;L. Mucibello;S. Ochesanu;B. Roland;R. Rougny;M. Selvaggi;Z. Staykova;H. Van Haevermaet;P. Van Mechelen;N. Van Remortel;A. Van Spilbeeck;F. Blekman;S. Blyweert;J. DʼHondt;R. Gonzalez Suarez;A. Kalogeropoulos;M. Maes;A. Olbrechts;W. Van Doninck;P. Van Mulders;G.P. Van Onsem;I. Villella;O. Charaf;B. Clerbaux;G. De Lentdecker;V. Dero;A.P.R. Gay;T. Hreus;A. Léonard;P.E. Marage;T. Reis;L. Thomas;C. Vander Velde;P. Vanlaer;J. Wang;V. Adler;K. Beernaert;A. Cimmino;S. Costantini;G. Garcia;M. Grunewald;B. Klein;J. Lellouch;A. Marinov;J. Mccartin;A.A. Ocampo Rios;D. Ryckbosch;N. Strobbe;F. Thyssen;M. Tytgat;L. Vanelderen;P. Verwilligen;S. Walsh;E. Yazgan;N. Zaganidis;S. Basegmez;G. Bruno;R. Castello;A. Caudron;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;L. Perrini;A. Pin;K. Piotrzkowski;N. Schul;J.M. Vizan Garcia;N. Beliy;T. Caebergs;E. Daubie;G.H. Hammad;G.A. Alves;M. Correa Martins Junior;D. De Jesus Damiao;T. Martins;M.E. Pol;M.H.G. Souza;W.L. Aldá Júnior;W. Carvalho;A. Custódio;E.M. Da Costa;C. De Oliveira Martins;S. Fonseca De Souza;D. Matos Figueiredo;L. Mundim;H. Nogima;V. Oguri;W.L. Prado Da Silva;A. Santoro;S.M. Silva Do Amaral;L. Soares Jorge;A. Sznajder;C.A. Bernardes;F.A. Dias;T.R. Fernandez Perez Tomei;E.M. Gregores;C. Lagana;F. Marinho;P.G. Mercadante;S.F. Novaes;Sandra S. Padula;V. Genchev;P. Iaydjiev;S. Piperov;M. Rodozov;S. Stoykova;G. Sultanov;V. Tcholakov;R. Trayanov;M. Vutova;A. Dimitrov;R. Hadjiiska;V. Kozhuharov;L. Litov;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;X. Wang;Z. Wang;H. Xiao;M. Xu;J. Zang;Z. Zhang;C. Asawatangtrakuldee;Y. Ban;S. Guo;Y. Guo;W. Li;S. Liu;Y. Mao;S.J. Qian;H. Teng;S. Wang;B. Zhu;W. Zou;C. Avila;B. Gomez Moreno;A.F. Osorio Oliveros;J.C. Sanabria;N. Godinovic;D. Lelas;R. Plestina;D. Polic;I. Puljak;Z. Antunovic;M. Kovac;V. Brigljevic;S. Duric;K. Kadija;J. Luetic;S. Morovic;A. Attikis;M. Galanti;G. Mavromanolakis;J. Mousa;C. Nicolaou;F. Ptochos;P.A. Razis;M. Finger;M. Finger;Y. Assran;S. Elgammal;A. Ellithi Kamel;S. Khalil;M.A. Mahmoud;A. Radi;M. Kadastik;M. Müntel;M. Raidal;L. Rebane;A. Tiko;V. Azzolini;P. Eerola;G. Fedi;M. Voutilainen;J. Härkönen;A. Heikkinen;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;D. Ungaro;L. Wendland;K. Banzuzi;A. Korpela;T. Tuuva;M. Besancon;S. Choudhury;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;L. Millischer;A. Nayak;J. Rander;A. Rosowsky;I. Shreyber;M. Titov;S. Baffioni;F. Beaudette;L. Benhabib;L. Bianchini;M. Bluj;C. Broutin;P. Busson;C. Charlot;N. Daci;T. Dahms;L. Dobrzynski;R. Granier de Cassagnac;M. Haguenauer;P. Miné;C. Mironov;C. Ochando;P. Paganini;D. Sabes;R. Salerno;Y. Sirois;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. Gelé;U. Goerlach;P. Juillot;M. Karim;A.-C. Le Bihan;P. Van Hove;F. Fassi;D. Mercier;S. Beauceron;N. Beaupere;O. Bondu;G. Boudoul;H. Brun;J. Chasserat;R. Chierici;D. Contardo;P. Depasse;H. El Mamouni;J. Fay;S. Gascon;M. Gouzevitch;B. Ille;T. Kurca;M. Lethuillier;L. Mirabito;S. Perries;V. Sordini;S. Tosi;Y. Tschudi;P. Verdier;S. Viret;Z. Tsamalaidze;G. Anagnostou;S. Beranek;M. Edelhoff;L. Feld;N. Heracleous;O. Hindrichs;R. Jussen;K. Klein;J. Merz;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;P. Kreuzer;J. Lingemann;C. Magass;M. Merschmeyer;A. Meyer;M. Olschewski;P. Papacz;H. Pieta;H. Reithler;S.A. Schmitz;L. Sonnenschein;J. Steggemann;D. Teyssier;M. Weber;M. Bontenackels;V. Cherepanov;M. Davids;G. Flügge;H. Geenen;M. Geisler;W. Haj Ahmad;F. Hoehle;B. Kargoll;T. Kress;Y. Kuessel;A. Linn;A. Nowack;L. Perchalla;O. Pooth;J. Rennefeld;P. Sauerland;A. Stahl;M. Aldaya Martin;J. Behr;W. Behrenhoff;U. Behrens;M. Bergholz;A. Bethani;K. Borras;A. Burgmeier;A. Cakir;L. Calligaris;A. Campbell;E. Castro;F. Costanza;D. Dammann;G. Eckerlin;D. Eckstein;G. Flucke;A. Geiser;I. Glushkov;P. Gunnellini;S. Habib;J. Hauk;G. Hellwig;H. Jung;M. Kasemann;P. Katsas;C. Kleinwort;H. Kluge;A. Knutsson;M. Krämer;D. Krücker;E. Kuznetsova;W. Lange;W. Lohmann;B. Lutz;R. Mankel;I. Marfin;M. Marienfeld;I.-A. Melzer-Pellmann;A.B. Meyer;J. Mnich;A. Mussgiller;S. Naumann-Emme;J. Olzem;H. Perrey;A. Petrukhin;D. Pitzl;A. Raspereza;P.M. Ribeiro Cipriano;C. Riedl;M. Rosin;J. Salfeld-Nebgen;R. Schmidt;T. Schoerner-Sadenius;N. Sen;A. Spiridonov;M. Stein;R. Walsh;C. Wissing;C. Autermann;V. Blobel;S. Bobrovskyi;J. Draeger;H. Enderle;J. Erfle;U. Gebbert;M. Görner;T. Hermanns;R.S. Höing;K. Kaschube;G. Kaussen;H. Kirschenmann;R. Klanner;J. Lange;B. Mura;F. Nowak;T. Peiffer;N. Pietsch;D. Rathjens;C. Sander;H. Schettler;P. Schleper;E. Schlieckau;A. Schmidt;M. Schröder;T. Schum;M. Seidel;H. Stadie;G. Steinbrück;J. Thomsen;C. Barth;J. Berger;C. Böser;T. Chwalek;W. De Boer;A. Descroix;A. Dierlamm;M. Feindt;M. Guthoff;C. Hackstein;F. Hartmann;T. Hauth;M. Heinrich;H. Held;K.H. Hoffmann;S. Honc;I. Katkov;J.R. Komaragiri;D. Martschei;S. Mueller;Th. Müller;M. Niegel;A. Nürnberg;O. Oberst;A. Oehler;J. Ott;G. Quast;K. Rabbertz;F. Ratnikov;N. Ratnikova;S. Röcker;A. Scheurer;F.-P. Schilling;G. Schott;H.J. Simonis;F.M. Stober;D. Troendle;R. Ulrich;J. Wagner-Kuhr;S. Wayand;T. Weiler;M. Zeise;G. Daskalakis;T. Geralis;S. Kesisoglou;A. Kyriakis;D. Loukas;I. Manolakos;A. Markou;C. Markou;C. Mavrommatis;E. Ntomari;L. Gouskos;T.J. Mertzimekis;A. Panagiotou;N. Saoulidou;I. Evangelou;C. Foudas;P. Kokkas;N. Manthos;I. Papadopoulos;V. Patras;G. Bencze;C. Hajdu;P. Hidas;D. Horvath;K. Krajczar;B. Radics;F. Sikler;V. Veszpremi;G. Vesztergombi;N. Beni;S. Czellar;J. Molnar;J. Palinkas;Z. Szillasi;J. Karancsi;P. Raics;Z.L. Trocsanyi;B. Ujvari;S.B. Beri;V. Bhatnagar;N. Dhingra;R. Gupta;M. Jindal;M. Kaur;J.M. Kohli;M.Z. Mehta;N. Nishu;L.K. Saini;A. Sharma;J. Singh;S. Ahuja;A. Bhardwaj;B.C. Choudhary;A. Kumar;A. Kumar;S. Malhotra;M. Naimuddin;K. Ranjan;V. Sharma;R.K. Shivpuri;S. Banerjee;S. Bhattacharya;S. Dutta;B. Gomber;Sa. Jain;Sh. Jain;R. Khurana;S. Sarkar;A. Abdulsalam;R.K. Choudhury;D. Dutta;S. Kailas;V. Kumar;P. Mehta;A.K. Mohanty;L.M. Pant;P. Shukla;T. Aziz;S. Ganguly;M. Guchait;M. Maity;G. Majumder;K. Mazumdar;G.B. Mohanty;B. Parida;K. Sudhakar;N. Wickramage;S. Banerjee;S. Dugad;H. Arfaei;H. Bakhshiansohi;S.M. Etesami;A. Fahim;M. Hashemi;H. Hesari;A. Jafari;M. Khakzad;A. Mohammadi;M. Mohammadi Najafabadi;S. Paktinat Mehdiabadi;B. Safarzadeh;M. Zeinali;M. Abbrescia;L. Barbone;C. Calabria;S.S. Chhibra;A. Colaleo;D. Creanza;N. De Filippis;M. De Palma;L. Fiore;G. Iaselli;L. Lusito;G. Maggi;M. Maggi;B. Marangelli;S. My;S. Nuzzo;N. Pacifico;A. Pompili;G. Pugliese;G. Selvaggi;L. Silvestris;G. Singh;R. Venditti;G. Zito;G. Abbiendi;A.C. Benvenuti;D. Bonacorsi;S. Braibant-Giacomelli;L. Brigliadori;P. Capiluppi;A. Castro;F.R. Cavallo;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. Siroli;R. Travaglini;S. Albergo;G. Cappello;M. Chiorboli;S. Costa;R. Potenza;A. Tricomi;C. Tuve;G. Barbagli;V. Ciulli;C. Civinini;R. DʼAlessandro;E. Focardi;S. Frosali;E. Gallo;S. Gonzi;M. Meschini;S. Paoletti;G. Sguazzoni;A. Tropiano;L. Benussi;S. Bianco;S. Colafranceschi;F. Fabbri;D. Piccolo;P. Fabbricatore;R. Musenich;A. Benaglia;F. De Guio;L. Di Matteo;S. Fiorendi;S. Gennai;A. Ghezzi;S. Malvezzi;R.A. Manzoni;A. Martelli;A. Massironi;D. Menasce;L. Moroni;M. Paganoni;D. Pedrini;S. Ragazzi;N. Redaelli;S. Sala;T. Tabarelli de Fatis;S. Buontempo;C.A. Carrillo Montoya;N. Cavallo;A. De Cosa;O. Dogangun;F. Fabozzi;A.O.M. Iorio;L. Lista;S. Meola;M. Merola;P. Paolucci;P. Azzi;N. Bacchetta;P. Bellan;D. Bisello;A. Branca;R. Carlin;P. Checchia;T. Dorigo;U. Dosselli;F. Gasparini;A. Gozzelino;K. Kanishchev;S. Lacaprara;I. Lazzizzera;M. Margoni;A.T. Meneguzzo;M. Nespolo;J. Pazzini;L. Perrozzi;N. Pozzobon;P. Ronchese;F. Simonetto;E. Torassa;M. Tosi;S. Vanini;P. Zotto;A. Zucchetta;M. Gabusi;S.P. Ratti;C. Riccardi;P. Torre;P. Vitulo;M. Biasini;G.M. Bilei;L. Fanò;P. Lariccia;A. Lucaroni;G. Mantovani;M. Menichelli;A. Nappi;F. Romeo;A. Saha;A. Santocchia;S. Taroni;P. Azzurri;G. Bagliesi;T. Boccali;G. Broccolo;R. Castaldi;R.T. DʼAgnolo;R. DellʼOrso;F. Fiori;L. Foà;A. Giassi;A. Kraan;F. Ligabue;T. Lomtadze;L. Martini;A. Messineo;F. Palla;F. Palmonari;A. Rizzi;A.T. Serban;P. Spagnolo;P. Squillacioti;R. Tenchini;G. Tonelli;A. Venturi;P.G. Verdini;L. Barone;F. Cavallari;D. Del Re;M. Diemoz;M. Grassi;E. Longo;P. Meridiani;F. Micheli;S. Nourbakhsh;G. Organtini;R. Paramatti;S. Rahatlou;M. Sigamani;L. Soffi;N. Amapane;R. Arcidiacono;S. Argiro;M. Arneodo;C. Biino;C. Botta;N. Cartiglia;M. Costa;P. De Remigis;N. Demaria;A. Graziano;C. Mariotti;S. Maselli;E. Migliore;V. Monaco;M. Musich;M.M. Obertino;N. Pastrone;M. Pelliccioni;A. Potenza;A. Romero;M. Ruspa;R. Sacchi;A. Solano;A. Staiano;A. Vilela Pereira;S. Belforte;F. Cossutti;G. Della Ricca;B. Gobbo;M. Marone;D. Montanino;A. Penzo;A. Schizzi;S.G. Heo;T.Y. Kim;S.K. Nam;S. Chang;J. Chung;D.H. Kim;G.N. Kim;D.J. Kong;H. Park;S.R. Ro;D.C. Son;T. Son;J.Y. Kim;Zero J. Kim;S. Song;H.Y. Jo;S. Choi;D. Gyun;B. Hong;M. Jo;H. Kim;T.J. Kim;K.S. Lee;D.H. Moon;S.K. Park;E. Seo;M. Choi;S. Kang;H. Kim;J.H. Kim;C. Park;I.C. Park;S. Park;G. Ryu;Y. Cho;Y. Choi;Y.K. Choi;J. Goh;M.S. Kim;E. Kwon;B. Lee;J. Lee;S. Lee;H. Seo;I. Yu;M.J. Bilinskas;I. Grigelionis;M. Janulis;A. Juodagalvis;H. Castilla-Valdez;E. De La Cruz-Burelo;I. Heredia-de La Cruz;R. Lopez-Fernandez;R. Magaña Villalba;J. Martínez-Ortega;A. Sánchez-Hernández;L.M. Villasenor-Cendejas;S. Carrillo Moreno;F. Vazquez Valencia;H.A. Salazar Ibarguen;E. Casimiro Linares;A. Morelos Pineda;M.A. Reyes-Santos;D. Krofcheck;A.J. Bell;P.H. Butler;R. Doesburg;S. Reucroft;H. Silverwood;M. Ahmad;M.I. Asghar;H.R. Hoorani;S. Khalid;W.A. Khan;T. Khurshid;S. Qazi;M.A. Shah;M. Shoaib;G. Brona;K. Bunkowski;M. Cwiok;W. Dominik;K. Doroba;A. Kalinowski;M. Konecki;J. Krolikowski;H. Bialkowska;B. Boimska;T. Frueboes;R. Gokieli;M. Górski;M. Kazana;K. Nawrocki;K. Romanowska-Rybinska;M. Szleper;G. Wrochna;P. Zalewski;N. Almeida;P. Bargassa;A. David;P. Faccioli;M. Fernandes;P.G. Ferreira Parracho;M. Gallinaro;J. Seixas;J. Varela;P. Vischia;I. Belotelov;M. Gavrilenko;I. Golutvin;I. Gorbunov;A. Kamenev;V. Karjavin;G. Kozlov;A. Lanev;A. Malakhov;P. Moisenz;V. Palichik;V. Perelygin;M. Savina;S. Shmatov;V. Smirnov;A. Volodko;A. Zarubin;S. Evstyukhin;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;V. Matveev;A. Pashenkov;D. Tlisov;A. Toropin;V. Epshteyn;M. Erofeeva;V. Gavrilov;M. Kossov;N. Lychkovskaya;V. Popov;G. Safronov;S. Semenov;V. Stolin;E. Vlasov;A. Zhokin;A. Belyaev;E. Boos;V. Bunichev;M. Dubinin;L. Dudko;A. Ershov;V. Klyukhin;O. Kodolova;I. Lokhtin;A. Markina;S. Obraztsov;M. Perfilov;S. Petrushanko;A. Popov;L. Sarycheva;V. Savrin;A. Snigirev;V. Andreev;M. Azarkin;I. Dremin;M. Kirakosyan;A. Leonidov;G. Mesyats;S.V. Rusakov;A. Vinogradov;I. Azhgirey;I. Bayshev;S. Bitioukov;V. Grishin;V. Kachanov;D. Konstantinov;A. Korablev;V. Krychkine;V. Petrov;R. Ryutin;A. Sobol;L. Tourtchanovitch;S. Troshin;N. Tyurin;A. Uzunian;A. Volkov;P. Adzic;M. Djordjevic;M. Ekmedzic;D. Krpic;J. Milosevic;M. Aguilar-Benitez;J. Alcaraz Maestre;P. Arce;C. Battilana;E. Calvo;M. Cerrada;M. Chamizo Llatas;N. Colino;B. De La Cruz;A. Delgado Peris;C. Diez Pardos;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;J. Puerta Pelayo;A. Quintario Olmeda;I. Redondo;L. Romero;J. Santaolalla;M.S. Soares;C. Willmott;C. Albajar;G. Codispoti;J.F. de Trocóniz;J. Cuevas;J. Fernandez Menendez;S. Folgueras;I. Gonzalez Caballero;L. Lloret Iglesias;J. Piedra Gomez;J.A. Brochero Cifuentes;I.J. Cabrillo;A. Calderon;S.H. 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Search for narrow resonances in dilepton mass spectra in pp collisions at √s= 7TeV
CIULLI, VITALIANO;D'ALESSANDRO, RAFFAELLO;FOCARDI, ETTORE;GONZI, SANDRO;P. Lenzi;
2012
Abstract
A search for narrow, high-mass resonances decaying to electron or muon pairs has been performed using pp collision data collected at by the CMS experiment in 2011. The data sample corresponds to an integrated luminosity of approximately 5 fb−1. The event yields observed in the signal regions are consistent with predictions of the standard model backgrounds, and upper limits on the cross section times branching fraction for a resonance decaying to dileptons are extracted from a shape analysis of the dilepton invariant mass distribution. The resulting mass limits at 95% confidence level are 2330 GeV for the Z′ in the Sequential Standard Model, 2000 GeV for the superstring-inspired resonance, 890 (540) GeV for the Stueckelberg extension with the mass parameter ϵ=0.06 (0.04), and 2140 (1810) GeV for Kaluza–Klein gravitons with the coupling parameter of 0.10 (0.05). These limits are the most stringent to date.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.



