Attenzione: i dati modificati non sono ancora stati salvati. Per confermare inserimenti o cancellazioni di voci è necessario confermare con il tasto SALVA/INSERISCI in fondo alla pagina
CRIS Current Research Information System
The standard model of particle physics describes the fundamental particles and their interactions via the strong, electromagnetic and weak forces. It provides precise predictions for measurable quantities that can be tested experimentally. The probabilities, or branching fractions, of the strange B meson (B0s) and the B0 meson decaying into two oppositely charged muons (μ+ and μ−) are especially interesting because of their sensitivity to theories that extend the standard model. The standard model predicts that the B0s → µ+ µ− and B0 → µ+ µ− decays are very rare, with about four of the former occurring for every billion B0s mesons produced, and one of the latter occurring for every ten billion B0 mesons. A difference in the observed branching fractions with respect to the predictions of the standard model would provide a direction in which the standard model should be extended. Before the Large Hadron Collider (LHC) at CERN started operating, no evidence for either decay mode had been found. Upper limits on the branching fractions were an order of magnitude above the standard model predictions. The CMS (Compact Muon Solenoid) and LHCb (Large Hadron Collider beauty) collaborations have performed a joint analysis of the data from proton–proton collisions that they collected in 2011 at a centre-of-mass energy of seven teraelectronvolts and in 2012 at eight teraelectronvolts. Here we report the first observation of the B0s → µ+ µ− decay, with a statistical significance exceeding six standard deviations, and the best measurement so far of its branching fraction. Furthermore, we obtained evidence for the B0 → µ+ µ− decay with a statistical significance of three standard deviations. Both measurements are statistically compatible with standard model predictions and allow stringent constraints to be placed on theories beyond the standard model. The LHC experiments will resume taking data in 2015, recording proton–proton collisions at a centre-of-mass energy of 13 teraelectronvolts, which will approximately double the production rates of B0s and B0 mesons and lead to further improvements in the precision of these crucial tests of the standard model.
V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. (2015). Observation of the Rare B0s → µ+ µ− Decay from the Combined Analysis of CMS and LHCb Data. NATURE, 522(7554), 68-72 [10.1038/nature14474].
Observation of the Rare B0s → µ+ µ− Decay from the Combined Analysis of CMS and LHCb Data
V. Khachatryan;A. M. Sirunyan;A. Tumasyan;W. Adam;T. Bergauer;M. Dragicevic;J. Erö;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;W. Treberer Treberspurg;W. Waltenberger;C. E. Wulz;V. Mossolov;N. Shumeiko;J. Suarez Gonzalez;S. Alderweireldt;S. Bansal;T. Cornelis;E. A. De Wolf;X. Janssen;A. Knutsson;J. Lauwers;S. Luyckx;S. Ochesanu;R. Rougny;M. Van De Klundert;H. Van Haevermaet;P. Van Mechelen;N. Van Remortel;A. Van Spilbeeck;F. Blekman;S. Blyweert;J. D'Hondt;N. Daci;N. Heracleous;J. Keaveney;S. Lowette;M. Maes;A. Olbrechts;Q. Python;D. Strom;S. Tavernier;W. Van Doninck;P. Van Mulders;G. P. Van Onsem;I. Villella;C. Caillol;B. Clerbaux;G. De Lentdecker;D. Dobur;L. Favart;A. P. R. Gay;A. Grebenyuk;A. Léonard;A. Mohammadi;L. Perniè;A. Randle conde;T. Reis;T. Seva;L. Thomas;C. Vander Velde;P. Vanlaer;J. Wang;F. Zenoni;V. Adler;K. Beernaert;L. Benucci;A. Cimmino;S. Costantini;S. Crucy;S. Dildick;A. Fagot;G. Garcia;J. Mccartin;A. A. Ocampo Rios;D. Ryckbosch;S. Salva Diblen;M. Sigamani;N. Strobbe;F. Thyssen;M. Tytgat;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;A. Jafari;P. Jez;M. Komm;V. Lemaitre;C. Nuttens;D. Pagano;L. Perrini;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;W. L. Aldá Júnior;G. A. Alves;L. Brito;M. Correa Martins Junior;T. Dos Reis Martins;C. Mora Herrera;M. E. Pol;P. Rebello Teles;W. Carvalho;J. Chinellato;A. Custódio;E. M. Da Costa;D. De Jesus Damiao;C. De Oliveira Martins;S. Fonseca De Souza;H. Malbouisson;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. Bernardes;S. Dogra;T. R. Fernandez Perez Tomei;E. M. Gregores;P. G. Mercadante;S. F. Novaes;Sandra S. Padula;A. Aleksandrov;V. Genchev;R. Hadjiiska;P. Iaydjiev;A. Marinov;S. Piperov;M. Rodozov;G. Sultanov;M. Vutova;A. Dimitrov;I. Glushkov;L. Litov;B. Pavlov;P. Petkov;J. G. Bian;G. M. Chen;H. S. Chen;M. Chen;T. Cheng;R. Du;C. H. Jiang;R. Plestina;F. Romeo;J. Tao;Z. Wang;C. Asawatangtrakuldee;Y. Ban;Q. Li;S. Liu;Y. Mao;S. J. Qian;D. Wang;Z. Xu;W. Zou;C. Avila;A. Cabrera;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;L. Sudic;A. Attikis;G. Mavromanolakis;J. Mousa;C. Nicolaou;F. Ptochos;P. A. Razis;M. Bodlak;M. Finger;M. Finger J.r.;Y. Assran;A. Ellithi Kamel;M. A. Mahmoud;A. Radi;M. Kadastik;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;J. Talvitie;T. Tuuva;M. Besancon;F. Couderc;M. Dejardin;D. Denegri;B. Fabbro;J. L. Faure;C. Favaro;F. Ferri;S. Ganjour;A. Givernaud;P. Gras;G. Hamel de Monchenault;P. Jarry;E. Locci;J. Malcles;J. Rander;A. Rosowsky;M. Titov;S. Baffioni;F. Beaudette;P. Busson;C. Charlot;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;G. Ortona;P. Paganini;S. Regnard;R. Salerno;J. B. Sauvan;Y. Sirois;C. Veelken;Y. Yilmaz;A. Zabi;J. L. Agram;J. Andrea;A. Aubin;D. Bloch;J. M. Brom;E. C. Chabert;C. Collard;E. Conte;J. C. Fontaine;D. Gelé;U. Goerlach;C. Goetzmann;A. C. Le Bihan;K. Skovpen;P. Van Hove;S. Gadrat;S. Beauceron;N. Beaupere;G. Boudoul;E. Bouvier;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;D. Sabes;L. Sgandurra;V. Sordini;M. Vander Donckt;P. Verdier;S. Viret;H. Xiao;Z. Tsamalaidze;C. Autermann;S. Beranek;M. Bontenackels;M. Edelhoff;L. Feld;A. Heister;O. Hindrichs;K. Klein;A. Ostapchuk;F. Raupach;J. Sammet;S. Schael;J. F. Schulte;H. Weber;B. Wittmer;V. Zhukov;M. Ata;M. Brodski;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;P. Millet;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;A. Künsken;J. Lingemann;A. Nowack;I. M. Nugent;O. Pooth;A. Stahl;M. Aldaya Martin;I. Asin;N. Bartosik;J. Behr;U. Behrens;A. J. Bell;A. Bethani;K. Borras;A. Burgmeier;A. Cakir;L. Calligaris;A. Campbell;S. Choudhury;F. Costanza;C. Diez Pardos;G. Dolinska;S. Dooling;T. Dorland;G. Eckerlin;D. Eckstein;T. Eichhorn;G. Flucke;J. Garay Garcia;A. Geiser;P. Gunnellini;J. Hauk;M. Hempel;H. Jung;A. Kalogeropoulos;M. Kasemann;P. Katsas;J. Kieseler;C. Kleinwort;I. Korol;D. Krücker;W. Lange;J. Leonard;K. Lipka;A. Lobanov;W. Lohmann;B. Lutz;R. Mankel;I. Marfin;I. A. Melzer Pellmann;A. B. Meyer;G. Mittag;J. Mnich;A. Mussgiller;S. Naumann Emme;A. Nayak;E. Ntomari;H. Perrey;D. Pitzl;R. Placakyte;A. Raspereza;P. M. Ribeiro Cipriano;B. Roland;E. Ron;M. Ö. Sahin;J. Salfeld Nebgen;P. Saxena;T. Schoerner Sadenius;M. Schröder;C. Seitz;S. Spannagel;A. D. R. Vargas Trevino;R. Walsh;C. Wissing;V. Blobel;M. Centis Vignali;A. R. Draeger;J. Erfle;E. Garutti;K. Goebel;M. Görner;J. Haller;M. Hoffmann;R. S. Höing;A. Junkes;H. Kirschenmann;R. Klanner;R. Kogler;J. Lange;T. Lapsien;T. Lenz;I. Marchesini;J. Ott;T. Peiffer;A. Perieanu;N. Pietsch;J. Poehlsen;T. Poehlsen;D. Rathjens;C. Sander;H. Schettler;P. Schleper;E. Schlieckau;A. Schmidt;M. Seidel;V. Sola;H. Stadie;G. Steinbrück;D. Troendle;E. Usai;L. Vanelderen;A. Vanhoefer;C. Barth;C. Baus;J. Berger;C. Böser;E. Butz;T. Chwalek;W. De Boer;A. Descroix;A. Dierlamm;M. Feindt;F. Frensch;M. Giffels;A. Gilbert;F. Hartmann;T. Hauth;U. Husemann;I. Katkov;A. Kornmayer;E. Kuznetsova;P. Lobelle Pardo;M. U. Mozer;T. Müller;T.h. Müller;A. Nürnberg;G. Quast;K. Rabbertz;S. Röcker;H. J. Simonis;F. M. Stober;R. Ulrich;J. Wagner Kuhr;S. Wayand;T. Weiler;R. Wolf;G. Anagnostou;G. Daskalakis;T. Geralis;V. A. Giakoumopoulou;A. Kyriakis;D. Loukas;A. Markou;C. Markou;A. Psallidas;I. Topsis Giotis;A. Agapitos;S. Kesisoglou;A. Panagiotou;N. Saoulidou;E. Stiliaris;X. Aslanoglou;I. Evangelou;G. Flouris;C. Foudas;P. Kokkas;N. Manthos;I. Papadopoulos;E. Paradas;J. Strologas;G. Bencze;C. Hajdu;P. Hidas;D. Horvath;F. Sikler;V. Veszpremi;G. Vesztergombi;A. J. Zsigmond;N. Beni;S. Czellar;J. Karancsi;J. Molnar;J. Palinkas;Z. Szillasi;A. Makovec;P. Raics;Z. L. Trocsanyi;B. Ujvari;N. Sahoo;S. K. Swain;S. B. Beri;V. Bhatnagar;R. Gupta;U. Bhawandeep;A. K. Kalsi;M. Kaur;R. Kumar;M. Mittal;N. Nishu;J. B. Singh;Ashok Kumar;Arun Kumar;S. Ahuja;A. Bhardwaj;B. C. Choudhary;A. Kumar;S. Malhotra;M. Naimuddin;K. Ranjan;V. Sharma;S. Banerjee;S. Bhattacharya;K. Chatterjee;S. Dutta;B. Gomber;S.a. Jain;S.h. Jain;R. Khurana;A. Modak;S. Mukherjee;D. Roy;S. Sarkar;M. Sharan;A. Abdulsalam;D. Dutta;S. Kailas;V. Kumar;A. K. Mohanty;L. M. Pant;P. Shukla;A. Topkar;T. Aziz;S. Banerjee;S. Bhowmik;R. M. Chatterjee;R. K. Dewanjee;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. Bakhshiansohi;H. Behnamian;S. M. Etesami;A. Fahim;R. Goldouzian;M. Khakzad;M. Mohammadi Najafabadi;M. Naseri;S. Paktinat Mehdiabadi;F. Rezaei Hosseinabadi;B. Safarzadeh;M. Zeinali;M. Felcini;M. Grunewald;M. Abbrescia;C. Calabria;S. S. Chhibra;A. Colaleo;D. Creanza;N. De Filippis;M. De Palma;L. Fiore;G. Iaselli;G. Maggi;M. Maggi;S. My;S. Nuzzo;A. Pompili;G. Pugliese;R. Radogna;G. Selvaggi;A. Sharma;L. Silvestris;R. Venditti;P. Verwilligen;G. Abbiendi;A. C. Benvenuti;BONACORSI, DANIELE;BRAIBANT, SYLVIE;BRIGLIADORI, LUCA;CAMPANINI, RENATO;CAPILUPPI, PAOLO;CASTRO, ANDREA;F. R. Cavallo;CODISPOTI, GIUSEPPE;CUFFIANI, MARCO;G. M. Dallavalle;F. Fabbri;FANFANI, ALESSANDRA;FASANELLA, DANIELE;P. Giacomelli;C. Grandi;GUIDUCCI, LUIGI;S. Marcellini;G. Masetti;A. Montanari;NAVARRIA, FRANCESCO LUIGI;A. Perrotta;PRIMAVERA, FEDERICA;ROSSI, ANTONIO MARIA;ROVELLI, TIZIANO;SIROLI, GIAN PIERO;TOSI, NICOLÒ;TRAVAGLINI, RICCARDO;S. Albergo;G. Cappello;M. Chiorboli;S. Costa;F. Giordano;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;R. Ferretti;F. Ferro;M. Lo Vetere;E. Robutti;S. Tosi;M. E. Dinardo;S. Fiorendi;S. Gennai;R. Gerosa;A. Ghezzi;P. Govoni;M. T. Lucchini;S. Malvezzi;R. A. Manzoni;A. Martelli;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;N. Bacchetta;D. Bisello;A. Branca;R. Carlin;P. Checchia;M. Dall'Osso;T. Dorigo;U. Dosselli;M. Galanti;F. Gasparini;U. Gasparini;P. Giubilato;A. Gozzelino;K. Kanishchev;S. Lacaprara;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;V. Re;C. Riccardi;P. Salvini;P. Vitulo;M. Biasini;G. M. Bilei;D. Ciangottini;L. Fanò;P. Lariccia;G. Mantovani;M. Menichelli;A. Saha;A. Santocchia;A. Spiezia;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;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;G. D'imperio;D. Del Re;M. Diemoz;C. Jorda;E. Longo;F. Margaroli;P. Meridiani;F. Micheli;S. Nourbakhsh;G. Organtini;R. Paramatti;S. Rahatlou;C. Rovelli;F. Santanastasio;L. Soffi;P. Traczyk;N. Amapane;R. Arcidiacono;S. Argiro;M. Arneodo;R. Bellan;C. Biino;N. Cartiglia;S. Casasso;M. Costa;A. Degano;N. Demaria;L. Finco;C. Mariotti;S. Maselli;E. Migliore;V. Monaco;M. Musich;M. M. Obertino;L. Pacher;N. Pastrone;M. Pelliccioni;G. L. Pinna Angioni;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;A. Schizzi;T. Umer;A. Zanetti;S. Chang;A. Kropivnitskaya;S. K. Nam;D. H. Kim;G. N. Kim;M. S. Kim;D. J. Kong;S. Lee;Y. D. Oh;H. Park;A. Sakharov;D. C. Son;T. J. Kim;J. Y. 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;H. D. Yoo;M. Choi;J. H. Kim;I. C. Park;G. Ryu;M. S. Ryu;Y. Choi;Y. K. Choi;J. Goh;D. Kim;E. Kwon;J. Lee;I. Yu;A. Juodagalvis;J. R. Komaragiri;M. A. B. Md Ali;E. Casimiro Linares;H. Castilla Valdez;E. De La Cruz Burelo;I. Heredia de La Cruz;A. Hernandez Almada;R. Lopez Fernandez;A. Sanchez Hernandez;S. Carrillo Moreno;F. Vazquez Valencia;I. Pedraza;H. A. Salazar Ibarguen;A. Morelos Pineda;D. Krofcheck;P. H. Butler;S. Reucroft;A. Ahmad;M. Ahmad;Q. Hassan;H. R. Hoorani;W. A. Khan;T. Khurshid;M. Shoaib;H. Bialkowska;M. Bluj;B. Boimska;T. Frueboes;M. Górski;M. Kazana;K. Nawrocki;K. Romanowska Rybinska;M. Szleper;P. Zalewski;G. Brona;K. Bunkowski;M. Cwiok;W. Dominik;K. Doroba;A. Kalinowski;M. Konecki;J. Krolikowski;M. Misiura;M. Olszewski;W. Wolszczak;P. Bargassa;C. Beirão Da Cruz E. Silva;P. Faccioli;P. G. Ferreira Parracho;M. Gallinaro;L. Lloret Iglesias;F. Nguyen;J. Rodrigues Antunes;J. Seixas;J. Varela;P. Vischia;S. Afanasiev;P. Bunin;M. Gavrilenko;I. Golutvin;I. Gorbunov;A. Kamenev;V. Karjavin;V. Konoplyanikov;A. Lanev;A. Malakhov;V. Matveev;P. Moisenz;V. Palichik;V. Perelygin;S. Shmatov;N. Skatchkov;V. Smirnov;A. Zarubin;V. Golovtsov;Y. Ivanov;V. Kim;P. Levchenko;V. Murzin;V. Oreshkin;I. Smirnov;V. Sulimov;L. Uvarov;S. Vavilov;A. Vorobyev;A.n. Vorobyev;Y.u. Andreev;A. Dermenev;S. Gninenko;N. Golubev;M. Kirsanov;N. Krasnikov;A. Pashenkov;D. Tlisov;A. Toropin;V. Epshteyn;V. Gavrilov;N. Lychkovskaya;V. Popov;I. Pozdnyakov;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. Ekmedzic;J. Milosevic;V. Rekovic;J. Alcaraz Maestre;C. Battilana;E. Calvo;M. Cerrada;M. Chamizo Llatas;N. Colino;B. De La Cruz;A. Delgado Peris;D. Domínguez Vázquez;A. Escalante Del Valle;C. Fernandez Bedoya;J. P. Fernández Ramos;J. Flix;M. C. Fouz;P. Garcia Abia;O. Gonzalez Lopez;S. Goy Lopez;J. M. Hernandez;M. I. Josa;E. Navarro De Martino;A. Pérez Calero Yzquierdo;J. Puerta Pelayo;A. Quintario Olmeda;I. Redondo;L. Romero;M. S. Soares;C. Albajar;J. F. de Trocóniz;M. Missiroli;D. Moran;H. Brun;J. Cuevas;J. Fernandez Menendez;S. Folgueras;I. Gonzalez Caballero;J. A. Brochero Cifuentes;I. J. Cabrillo;A. Calderon;J. Duarte Campderros;M. Fernandez;G. Gomez;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;P. Bloch;A. Bocci;A. Bonato;O. Bondu;C. Botta;H. Breuker;T. Camporesi;G. Cerminara;S. Colafranceschi;M. D'Alfonso;D. d'Enterria;A. Dabrowski;A. David;F. De Guio;A. De Roeck;S. De Visscher;E. Di Marco;M. Dobson;M. Dordevic;N. Dupont Sagorin;A. Elliott Peisert;G. Franzoni;W. Funk;D. Gigi;K. Gill;D. Giordano;M. Girone;F. Glege;R. Guida;S. Gundacker;M. Guthoff;J. Hammer;M. Hansen;P. Harris;J. Hegeman;V. Innocente;P. Janot;K. Kousouris;K. Krajczar;P. Lecoq;C. Lourenço;N. Magini;L. Malgeri;M. Mannelli;J. Marrouche;L. Masetti;F. Meijers;S. Mersi;E. Meschi;F. Moortgat;S. Morovic;M. Mulders;L. Orsini;L. Pape;E. Perez;L. Perrozzi;A. Petrilli;G. Petrucciani;A. Pfeiffer;M. Pimiä;D. Piparo;M. Plagge;A. Racz;G. Rolandi;M. Rovere;H. Sakulin;C. Schäfer;C. Schwick;A. Sharma;P. Siegrist;P. Silva;M. Simon;P. Sphicas;D. Spiga;J. Steggemann;B. Stieger;M. Stoye;Y. Takahashi;D. Treille;A. Tsirou;G. I. Veres;N. Wardle;H. K. Wöhri;H. Wollny;W. D. Zeuner;W. Bertl;K. Deiters;W. Erdmann;R. Horisberger;Q. Ingram;H. C. Kaestli;D. Kotlinski;D. Renker;T. Rohe;F. Bachmair;L. Bäni;L. Bianchini;M. A. Buchmann;B. Casal;N. Chanon;G. Dissertori;M. Dittmar;M. Donegà;M. Dünser;P. Eller;C. Grab;D. Hits;J. Hoss;W. Lustermann;B. Mangano;A. C. Marini;M. Marionneau;P. Martinez Ruiz del Arbol;M. Masciovecchio;D. Meister;N. Mohr;P. Musella;C. Nägeli;F. Nessi Tedaldi;F. Pandolfi;F. Pauss;M. Peruzzi;M. Quittnat;L. Rebane;M. Rossini;A. Starodumov;M. Takahashi;K. Theofilatos;R. Wallny;H. A. Weber;C. Amsler;M. F. Canelli;V. Chiochia;A. De Cosa;A. Hinzmann;T. Hreus;B. Kilminster;C. Lange;B. Millan Mejias;J. Ngadiuba;D. Pinna;P. Robmann;F. J. Ronga;S. Taroni;M. Verzetti;Y. Yang;M. Cardaci;K. H. Chen;C. Ferro;C. M. Kuo;W. Lin;Y. J. Lu;R. Volpe;S. S. Yu;P. Chang;Y. H. Chang;Y. W. Chang;Y. Chao;K. F. Chen;P. H. Chen;C. Dietz;U. Grundler;W. S. Hou;K. Y. Kao;Y. F. Liu;R. S. Lu;D. Majumder;E. Petrakou;Y. M. Tzeng;R. Wilken;B. Asavapibhop;G. Singh;N. Srimanobhas;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;A. Kayis Topaksu;G. Onengut;K. Ozdemir;S. Ozturk;A. Polatoz;D. Sunar Cerci;B. Tali;H. Topakli;M. Vergili;I. V. Akin;B. Bilin;S. Bilmis;H. Gamsizkan;B. Isildak;G. Karapinar;K. Ocalan;S. Sekmen;U. E. Surat;M. Yalvac;M. Zeyrek;E. A. Albayrak;E. Gülmez;M. Kaya;O. Kaya;T. Yetkin;K. Cankocak;F. I. Vardarlı;L. Levchuk;P. Sorokin;J. J. Brooke;E. Clement;D. Cussans;H. Flacher;J. Goldstein;M. Grimes;G. P. Heath;H. F. Heath;J. Jacob;L. Kreczko;C. Lucas;Z. Meng;D. M. Newbold;S. Paramesvaran;A. Poll;T. Sakuma;S. Senkin;V. J. Smith;K. W. Bell;A. Belyaev;C. Brew;R. M. Brown;D. J. A. Cockerill;J. A. Coughlan;K. Harder;S. Harper;E. Olaiya;D. Petyt;C. H. Shepherd Themistocleous;A. Thea;I. R. Tomalin;T. Williams;W. J. Womersley;S. D. Worm;M. Baber;R. Bainbridge;O. Buchmuller;D. Burton;D. Colling;N. Cripps;P. Dauncey;G. Davies;M. Della Negra;P. Dunne;W. Ferguson;J. Fulcher;D. Futyan;G. Hall;G. Iles;M. Jarvis;G. Karapostoli;M. Kenzie;R. Lane;R. Lucas;L. Lyons;A. M. Magnan;S. Malik;B. Mathias;J. Nash;A. Nikitenko;J. Pela;M. Pesaresi;K. Petridis;D. M. Raymond;S. Rogerson;A. Rose;C. Seez;P. Sharp;A. Tapper;M. Vazquez Acosta;T. Virdee;S. C. Zenz;J. E. Cole;P. R. Hobson;A. Khan;P. Kyberd;D. Leggat;D. Leslie;I. D. Reid;P. Symonds;L. Teodorescu;M. Turner;J. Dittmann;K. Hatakeyama;A. Kasmi;H. Liu;T. Scarborough;O. Charaf;S. I. Cooper;C. Henderson;P. Rumerio;A. Avetisyan;T. Bose;C. Fantasia;P. Lawson;C. Richardson;J. Rohlf;J. S.t. John;L. Sulak;J. Alimena;E. Berry;S. Bhattacharya;G. Christopher;D. Cutts;Z. Demiragli;N. Dhingra;A. Ferapontov;A. Garabedian;U. Heintz;G. Kukartsev;E. Laird;G. Landsberg;M. Luk;M. Narain;M. Segala;T. Sinthuprasith;T. Speer;J. Swanson;R. Breedon;G. Breto;M. Calderon De La Barca Sanchez;S. Chauhan;M. Chertok;J. Conway;R. Conway;P. T. Cox;R. Erbacher;M. Gardner;W. Ko;R. Lander;M. Mulhearn;D. Pellett;J. Pilot;F. Ricci Tam;S. Shalhout;J. Smith;M. Squires;D. Stolp;M. Tripathi;S. Wilbur;R. Yohay;R. Cousins;P. Everaerts;C. Farrell;J. Hauser;M. Ignatenko;G. Rakness;E. Takasugi;V. Valuev;M. Weber;K. Burt;R. Clare;J. Ellison;J. W. Gary;G. Hanson;J. Heilman;M. Ivova Rikova;P. Jandir;E. Kennedy;F. Lacroix;O. R. Long;A. Luthra;M. Malberti;M. Olmedo Negrete;A. Shrinivas;S. Sumowidagdo;S. Wimpenny;J. G. Branson;G. B. Cerati;S. Cittolin;R. T. D'Agnolo;A. Holzner;R. Kelley;D. Klein;D. Kovalskyi;J. Letts;I. Macneill;D. Olivito;S. Padhi;C. Palmer;M. Pieri;M. Sani;V. Sharma;S. Simon;Y. Tu;A. Vartak;C. Welke;F. Würthwein;A. Yagil;D. Barge;J. Bradmiller Feld;C. Campagnari;T. Danielson;A. Dishaw;V. Dutta;K. Flowers;M. Franco Sevilla;P. Geffert;C. George;F. Golf;L. Gouskos;J. Incandela;C. Justus;N. Mccoll;J. Richman;D. Stuart;W. To;C. West;J. Yoo;A. Apresyan;A. Bornheim;J. Bunn;Y. Chen;J. Duarte;A. Mott;H. B. Newman;C. Pena;M. Pierini;M. Spiropulu;J. R. Vlimant;R. Wilkinson;S. Xie;R. Y. Zhu;V. Azzolini;A. Calamba;B. Carlson;T. Ferguson;Y. Iiyama;M. Paulini;J. Russ;H. Vogel;I. Vorobiev;J. P. Cumalat;W. T. Ford;A. Gaz;M. Krohn;E. Luiggi Lopez;U. Nauenberg;J. G. Smith;K. Stenson;S. R. Wagner;J. Alexander;A. Chatterjee;J. Chaves;J. Chu;S. Dittmer;N. Eggert;N. Mirman;G. Nicolas Kaufman;J. R. Patterson;A. Ryd;E. Salvati;L. Skinnari;W. Sun;W. D. Teo;J. Thom;J. Thompson;J. Tucker;Y. Weng;L. Winstrom;P. Wittich;D. Winn;S. Abdullin;M. Albrow;J. Anderson;G. Apollinari;L. A. T. Bauerdick;A. Beretvas;J. Berryhill;P. C. Bhat;G. Bolla;K. Burkett;J. N. Butler;H. W. K. Cheung;F. Chlebana;S. Cihangir;V. D. Elvira;I. Fisk;J. Freeman;Y. Gao;E. Gottschalk;L. Gray;D. Green;S. Grünendahl;O. Gutsche;J. Hanlon;D. Hare;R. M. Harris;J. Hirschauer;B. Hooberman;S. Jindariani;M. Johnson;U. Joshi;K. Kaadze;B. Klima;B. Kreis;S. Kwan;J. Linacre;D. Lincoln;R. Lipton;T. Liu;J. Lykken;K. Maeshima;J. M. Marraffino;V. I. Martinez Outschoorn;S. Maruyama;D. Mason;P. McBride;P. Merkel;K. Mishra;S. Mrenna;S. Nahn;C. Newman Holmes;V. O'Dell;O. Prokofyev;E. Sexton Kennedy;S. Sharma;A. Soha;W. J. Spalding;L. Spiegel;L. Taylor;S. Tkaczyk;N. V. Tran;L. Uplegger;E. W. Vaandering;R. Vidal;A. Whitbeck;J. Whitmore;F. Yang;D. Acosta;P. Avery;P. Bortignon;D. Bourilkov;M. Carver;D. Curry;S. Das;M. De Gruttola;G. P. Di Giovanni;R. D. Field;M. Fisher;I. K. Furic;J. Hugon;J. Konigsberg;A. Korytov;T. Kypreos;J. F. Low;K. Matchev;H. Mei;P. Milenovic;G. Mitselmakher;L. Muniz;A. Rinkevicius;L. Shchutska;M. Snowball;D. Sperka;J. Yelton;M. Zakaria;S. Hewamanage;S. Linn;P. Markowitz;G. Martinez;J. L. Rodriguez;T. Adams;A. Askew;J. Bochenek;B. Diamond;J. Haas;S. Hagopian;V. Hagopian;K. F. Johnson;H. Prosper;V. Veeraraghavan;M. Weinberg;M. M. Baarmand;M. Hohlmann;H. Kalakhety;F. Yumiceva;M. R. Adams;L. Apanasevich;D. Berry;R. R. Betts;I. Bucinskaite;R. Cavanaugh;O. Evdokimov;L. Gauthier;C. E. Gerber;D. J. Hofman;P. Kurt;D. H. Moon;C. O'Brien;I. D. Sandoval Gonzalez;C. Silkworth;P. Turner;N. Varelas;B. Bilki;W. Clarida;K. Dilsiz;M. Haytmyradov;J. P. Merlo;H. Mermerkaya;A. Mestvirishvili;A. Moeller;J. Nachtman;H. Ogul;Y. Onel;F. Ozok;A. Penzo;R. Rahmat;S. Sen;P. Tan;E. Tiras;J. Wetzel;K. Yi;B. A. Barnett;B. Blumenfeld;S. Bolognesi;D. Fehling;A. V. Gritsan;P. Maksimovic;C. Martin;M. Swartz;P. Baringer;A. Bean;G. Benelli;C. Bruner;R. P. Kenny III;M. Malek;M. Murray;D. Noonan;S. Sanders;J. Sekaric;R. Stringer;Q. Wang;J. S. Wood;I. Chakaberia;A. Ivanov;S. Khalil;M. Makouski;Y. Maravin;L. K. Saini;N. Skhirtladze;I. Svintradze;J. Gronberg;D. Lange;F. Rebassoo;D. Wright;A. Baden;A. Belloni;B. Calvert;S. C. Eno;J. A. Gomez;N. J. Hadley;R. G. Kellogg;T. Kolberg;Y. Lu;A. C. Mignerey;K. Pedro;A. Skuja;M. B. Tonjes;S. C. Tonwar;A. Apyan;R. Barbieri;G. Bauer;W. Busza;I. A. Cali;M. Chan;L. Di Matteo;G. Gomez Ceballos;M. Goncharov;D. Gulhan;M. Klute;Y. S. Lai;Y. J. Lee;A. Levin;P. D. Luckey;T. Ma;C. Paus;D. Ralph;C. Roland;G. Roland;G. S. F. Stephans;K. Sumorok;D. Velicanu;J. Veverka;B. Wyslouch;M. Yang;M. Zanetti;V. Zhukova;B. Dahmes;A. Gude;S. C. Kao;K. Klapoetke;Y. Kubota;J. Mans;N. Pastika;R. Rusack;A. Singovsky;N. Tambe;J. Turkewitz;J. G. Acosta;S. Oliveros;E. Avdeeva;K. Bloom;S. Bose;D. R. Claes;A. Dominguez;R. Gonzalez Suarez;J. Keller;D. Knowlton;I. Kravchenko;J. Lazo Flores;F. Meier;F. Ratnikov;G. R. Snow;M. Zvada;J. Dolen;A. Godshalk;I. Iashvili;A. Kharchilava;A. Kumar;S. Rappoccio;G. Alverson;E. Barberis;D. Baumgartel;M. Chasco;A. Massironi;D. M. Morse;D. Nash;T. Orimoto;D. Trocino;R. J. Wang;D. Wood;J. Zhang;K. A. Hahn;A. Kubik;N. Mucia;N. Odell;B. Pollack;A. Pozdnyakov;M. Schmitt;S. Stoynev;K. Sung;M. Velasco;S. Won;A. Brinkerhoff;K. M. Chan;A. Drozdetskiy;M. Hildreth;C. Jessop;D. J. Karmgard;N. Kellams;K. Lannon;S. Lynch;N. Marinelli;Y. Musienko;T. Pearson;M. Planer;R. Ruchti;G. Smith;N. Valls;M. Wayne;M. Wolf;A. Woodard;L. Antonelli;J. Brinson;B. Bylsma;L. S. Durkin;S. Flowers;A. Hart;C. Hill;R. Hughes;K. Kotov;T. Y. Ling;W. Luo;D. Puigh;M. Rodenburg;B. L. Winer;H. Wolfe;H. W. Wulsin;O. Driga;P. Elmer;J. Hardenbrook;P. Hebda;A. Hunt;S. A. Koay;P. Lujan;D. Marlow;T. Medvedeva;M. Mooney;J. Olsen;P. Piroué;X. Quan;H. Saka;D. Stickland;C. Tully;J. S. Werner;A. Zuranski;E. Brownson;S. Malik;H. Mendez;J. E. Ramirez Vargas;V. E. Barnes;D. Benedetti;D. Bortoletto;M. De Mattia;L. Gutay;Z. Hu;M. K. Jha;M. Jones;K. Jung;M. Kress;N. Leonardo;D. H. Miller;N. Neumeister;B. C. Radburn Smith;X. Shi;I. Shipsey;D. Silvers;A. Svyatkovskiy;F. Wang;W. Xie;L. Xu;J. Zablocki;N. Parashar;J. Stupak;A. Adair;B. Akgun;K. M. Ecklund;F. J. M. Geurts;W. Li;B. Michlin;B. P. Padley;R. Redjimi;J. Roberts;J. Zabel;B. Betchart;A. Bodek;R. Covarelli;P. de Barbaro;R. Demina;Y. Eshaq;T. Ferbel;A. Garcia Bellido;P. Goldenzweig;J. Han;A. Harel;A. Khukhunaishvili;S. Korjenevski;G. Petrillo;D. Vishnevskiy;R. Ciesielski;L. Demortier;K. Goulianos;C. Mesropian;S. Arora;A. Barker;J. P. Chou;C. Contreras Campana;E. Contreras Campana;D. Duggan;D. Ferencek;Y. Gershtein;R. Gray;E. Halkiadakis;D. Hidas;S. Kaplan;A. Lath;S. Panwalkar;M. Park;R. Patel;S. Salur;S. Schnetzer;S. Somalwar;R. Stone;S. Thomas;P. Thomassen;M. Walker;K. Rose;S. Spanier;A. York;O. Bouhali;A. Castaneda Hernandez;R. Eusebi;W. Flanagan;J. Gilmore;T. Kamon;V. Khotilovich;V. Krutelyov;R. Montalvo;I. Osipenkov;Y. Pakhotin;A. Perloff;J. Roe;A. Rose;A. Safonov;I. Suarez;A. Tatarinov;K. A. Ulmer;N. Akchurin;C. Cowden;J. Damgov;C. Dragoiu;P. R. Dudero;J. Faulkner;K. Kovitanggoon;S. Kunori;S. W. Lee;T. Libeiro;I. Volobouev;E. Appelt;A. G. Delannoy;S. Greene;A. Gurrola;W. Johns;C. Maguire;Y. Mao;A. Melo;M. Sharma;P. Sheldon;B. Snook;S. Tuo;J. Velkovska;M. W. Arenton;S. Boutle;B. Cox;B. Francis;J. Goodell;R. Hirosky;A. Ledovskoy;H. Li;C. Lin;C. Neu;J. Wood;C. Clarke;R. Harr;P. E. Karchin;C. Kottachchi Kankanamge Don;P. Lamichhane;J. Sturdy;D. A. Belknap;D. Carlsmith;M. Cepeda;S. Dasu;L. Dodd;S. Duric;E. Friis;R. Hall Wilton;M. Herndon;A. Hervé;P. Klabbers;A. Lanaro;C. Lazaridis;A. Levine;R. Loveless;A. Mohapatra;I. Ojalvo;T. Perry;G. A. Pierro;G. Polese;I. Ross;T. Sarangi;A. Savin;W. H. Smith;D. Taylor;C. Vuosalo;N. Woods I. Bediaga;J. M. De Miranda;F. Ferreira Rodrigues;A. Gomes;A. Massafferri;A. C. dos Reis;A. B. Rodrigues;S. Amato;K. Carvalho Akiba;L. De Paula;O. Francisco;M. Gandelman;A. Hicheur;J. H. Lopes;D. Martins Tostes;I. Nasteva;J. M. Otalora Goicochea;E. Polycarpo;C. Potterat;M. S. Rangel;V. Salustino Guimaraes;B. Souza De Paula;D. Vieira;L. An;Y. Gao;F. Jing;Y. Li;Z. Yang;X. Yuan;Y. Zhang;L. Zhong;L. Beaucourt;M. Chefdeville;D. Decamp;N. Déléage;P.h. Ghez;J. P. Lees;J. F. Marchand;M. N. Minard;B. Pietrzyk;W. Qian;S. T'Jampens;V. Tisserand;E. Tournefier;Z. Ajaltouni;M. Baalouch;E. Cogneras;O. Deschamps;I. El Rifai;M. Grabalosa Gándara;P. Henrard;M. Hoballah;R. Lefèvre;J. Maratas;S. Monteil;V. Niess;P. Perret;C. Adrover;S. Akar;E. Aslanides;J. Cogan;W. Kanso;R. Le Gac;O. Leroy;G. Mancinelli;A. Mordà;M. Perrin Terrin;J. Serrano;A. Tsaregorodtsev;Y. Amhis;S. Barsuk;M. Borsato;O. Kochebina;J. Lefrançois;F. Machefert;A. Martín Sánchez;M. Nicol;P. Robbe;M. H. Schune;M. Teklishyn;A. Vallier;B. Viaud;G. Wormser;E. Ben Haim;M. Charles;S. Coquereau;P. David;L. Del Buono;L. Henry;F. Polci;J. Albrecht;T. Brambach;C.h. Cauet;M. Deckenhoff;U. Eitschberger;R. Ekelhof;L. Gavardi;F. Kruse;F. Meier;R. Niet;C. J. Parkinson;M. Schlupp;A. Shires;B. Spaan;S. Swientek;J. Wishahi;O. Aquines Gutierrez;J. Blouw;M. Britsch;M. Fontana;D. Popov;M. Schmelling;D. Volyanskyy;M. Zavertyaev;S. Bachmann;A. Bien;A. Comerma Montells;M. De Cian;F. Dordei;S. Esen;C. Färber;E. Gersabeck;L. Grillo;X. Han;S. Hansmann Menzemer;A. Jaeger;M. Kolpin;K. Kreplin;G. Krocker;B. Leverington;J. Marks;M. Meissner;M. Neuner;T. Nikodem;P. Seyfert;M. Stahl;S. Stahl;U. Uwer;M. Vesterinen;S. Wandernoth;D. Wiedner;A. Zhelezov;R. McNulty;R. Wallace;W. C. Zhang;A. Palano;CARBONE, ANGELO;A. Falabella;GALLI, DOMENICO;U. Marconi;MOGGI, NICCOLO';MUSSINI, MANUEL;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;G. Valenti;ZANGOLI, MARIA;W. Bonivento;S. Cadeddu;A. Cardini;V. Cogoni;A. Contu;A. Lai;B. Liu;G. Manca;R. Oldeman;B. Saitta;C. Vacca;M. Andreotti;W. Baldini;C. Bozzi;R. Calabrese;M. Corvo;M. Fiore;M. Fiorini;E. Luppi;L. L. Pappalardo;I. Shapoval;G. Tellarini;L. Tomassetti;S. Vecchi;L. Anderlini;A. Bizzeti;M. Frosini;G. Graziani;G. Passaleva;M. Veltri;G. Bencivenni;P. Campana;P. De Simone;G. Lanfranchi;M. Palutan;M. Rama;A. Sarti;B. Sciascia;R. Vazquez Gomez;R. Cardinale;F. Fontanelli;S. Gambetta;PATRIGNANI, CLAUDIA;A. Petrolini;A. Pistone;M. Calvi;L. Cassina;C. Gotti;B. Khanji;M. Kucharczyk;C. Matteuzzi;J. Fu;A. Geraci;N. Neri;F. Palombo;S. Amerio;G. Collazuol;S. Gallorini;A. Gianelle;D. Lucchesi;A. Lupato;M. Morandin;M. Rotondo;L. Sestini;G. Simi;R. Stroili;F. Bedeschi;R. Cenci;S. Leo;P. Marino;M. J. Morello;G. Punzi;S. Stracka;J. Walsh;G. Carboni;E. Furfaro;E. Santovetti;A. Satta;A. A. Alves Jr;G. Auriemma;V. Bocci;G. Martellotti;G. Penso;D. Pinci;R. Santacesaria;C. Satriano;A. Sciubba;A. Dziurda;W. Kucewicz;T. Lesiak;B. Rachwal;M. Witek;M. Firlej;T. Fiutowski;M. Idzik;P. Morawski;J. Moron;A. Oblakowska Mucha;K. Swientek;T. Szumlak;V. Batozskaya;K. Klimaszewski;K. Kurek;M. Szczekowski;A. Ukleja;W. Wislicki;L. Cojocariu;L. Giubega;A. Grecu;F. Maciuc;M. Orlandea;B. Popovici;S. Stoica;M. Straticiuc;G. Alkhazov;N. Bondar;A. Dzyuba;O. Maev;N. Sagidova;Y. Shcheglov;A. Vorobyev;S. Belogurov;I. Belyaev;V. Egorychev;D. Golubkov;T. Kvaratskheliya;I. V. Machikhiliyan;I. Polyakov;D. Savrina;A. Semennikov;A. Zhokhov;A. Berezhnoy;M. Korolev;A. Leflat;N. Nikitin;S. Filippov;E. Gushchin;L. Kravchuk;A. Bondar;S. Eidelman;P. Krokovny;V. Kudryavtsev;L. Shekhtman;V. Vorobyev;A. Artamonov;K. Belous;R. Dzhelyadin;Y.u. Guz;A. Novoselov;V. Obraztsov;A. Popov;V. Romanovsky;M. Shapkin;O. Stenyakin;O. Yushchenko;A. Badalov;M. Calvo Gomez;L. Garrido;D. Gascon;R. Graciani Diaz;E. Graugés;C. Marin Benito;E. Picatoste Olloqui;V. Rives Molina;H. Ruiz;X. Vilasis Cardona;B. Adeva;P. Alvarez Cartelle;A. Dosil Suárez;V. Fernandez Albor;A. Gallas Torreira;J. García Pardiñas;J. A. Hernando Morata;M. Plo Casasus;A. Romero Vidal;J. J. Saborido Silva;B. Sanmartin Sedes;C. Santamarina Rios;P. Vazquez Regueiro;C. Vázquez Sierra;M. Vieites Diaz;F. Alessio;F. Archilli;C. Barschel;S. Benson;J. Buytaert;D. Campora Perez;L. Castillo Garcia;M. Cattaneo;P.h. Charpentier;X. Cid Vidal;M. Clemencic;J. Closier;V. Coco;P. Collins;G. Corti;B. Couturier;C. D'Ambrosio;F. Dettori;A. Di Canto;H. Dijkstra;P. Durante;M. Ferro Luzzi;R. Forty;M. Frank;C. Frei;C. Gaspar;V. V. Gligorov;L. A. Granado Cardoso;T. Gys;C. Haen;J. He;T. Head;E. van Herwijnen;R. Jacobsson;D. Johnson;C. Joram;B. Jost;M. Karacson;T. M. Karbach;D. Lacarrere;B. Langhans;R. Lindner;C. Linn;S. Lohn;A. Mapelli;R. Matev;Z. Mathe;S. Neubert;N. Neufeld;A. Otto;J. Panman;M. Pepe Altarelli;N. Rauschmayr;M. Rihl;S. Roiser;T. Ruf;H. Schindler;B. Schmidt;A. Schopper;R. Schwemmer;S. Sridharan;F. Stagni;V. K. Subbiah;F. Teubert;E. Thomas;D. Tonelli;A. Trisovic;M. Ubeda Garcia;J. Wicht;K. Wyllie;V. Battista;A. Bay;F. Blanc;M. Dorigo;F. Dupertuis;C. Fitzpatrick;S. Gianì;G. Haefeli;P. Jaton;C. Khurewathanakul;I. Komarov;V. N. La Thi;N. Lopez March;R. Märki;M. Martinelli;B. Muster;T. Nakada;A. D. Nguyen;T. D. Nguyen;C. Nguyen Mau;J. Prisciandaro;A. Puig Navarro;B. Rakotomiaramanana;J. Rouvinet;O. Schneider;F. Soomro;P. Szczypka;M. Tobin;S. Tourneur;M. T. Tran;G. Veneziano;Z. Xu;J. Anderson;R. Bernet;E. Bowen;A. Bursche;N. Chiapolini;M. Chrzaszcz;C.h. Elsasser;E. Graverini;F. Lionetto;P. Lowdon;K. Müller;N. Serra;O. Steinkamp;B. Storaci;U. Straumann;M. Tresch;A. Vollhardt;R. Aaij;S. Ali;M. van Beuzekom;P. N. Y. David;K. De Bruyn;C. Farinelli;V. Heijne;W. Hulsbergen;E. Jans;P. Koppenburg;A. Kozlinskiy;J. van Leerdam;M. Merk;S. Oggero;A. Pellegrino;H. Snoek;J. van Tilburg;P. Tsopelas;N. Tuning;J. A. de Vries;T. Ketel;R. F. Koopman;R. W. Lambert;D. Martinez Santos;G. Raven;M. Schiller;V. Syropoulos;S. Tolk;A. Dovbnya;S. Kandybei;I. Raniuk;O. Okhrimenko;V. Pugatch;S. Bifani;N. Farley;P. Griffith;I. R. Kenyon;C. Lazzeroni;A. Mazurov;J. McCarthy;L. Pescatore;N. K. Watson;M. P. Williams;M. Adinolfi;J. Benton;N. H. Brook;A. Cook;M. Coombes;J. Dalseno;T. Hampson;S. T. Harnew;P. Naik;E. Price;C. Prouve;J. H. Rademacker;S. Richards;D. M. Saunders;N. Skidmore;D. Souza;J. J. Velthuis;D. Voong;W. Barter;M. O. Bettler;H. V. Cliff;H. M. Evans;J. Garra Tico;V. Gibson;S. Gregson;S. C. Haines;C. R. Jones;M. Sirendi;J. Smith;D. R. Ward;S. A. Wotton;S. Wright;J. J. Back;T. Blake;D. C. Craik;A. C. Crocombe;D. Dossett;T. Gershon;M. Kreps;C. Langenbruch;T. Latham;D. P. O'Hanlon;T. Pilař;A. Poluektov;M. M. Reid;R. Silva Coutinho;C. Wallace;M. Whitehead;S. Easo;R. Nandakumar;A. Papanestis;S. Ricciardi;F. F. Wilson;L. Carson;P. E. L. Clarke;G. A. Cowan;S. Eisenhardt;D. Ferguson;D. Lambert;H. Luo;A. B. Morris;F. Muheim;M. Needham;S. Playfer;M. Alexander;J. Beddow;C. T. Dean;L. Eklund;D. Hynds;S. Karodia;I. Longstaff;S. Ogilvy;M. Pappagallo;P. Sail;I. Skillicorn;F. J. P. Soler;P. Spradlin;A. Affolder;T. J. V. Bowcock;H. Brown;G. Casse;S. Donleavy;K. Dreimanis;S. Farry;R. Fay;K. Hennessy;D. Hutchcroft;M. Liles;B. McSkelly;G. D. Patel;J. D. Price;A. Pritchard;K. Rinnert;T. Shears;N. A. Smith;G. Ciezarek;S. Cunliffe;R. Currie;U. Egede;P. Fol;A. Golutvin;S. Hall;M. McCann;P. Owen;M. Patel;K. Petridis;F. Redi;I. Sepp;E. Smith;W. Sutcliffe;D. Websdale;R. B. Appleby;R. J. Barlow;T. Bird;P. M. Bjørnstad;S. Borghi;D. Brett;J. Brodzicka;L. Capriotti;S. Chen;S. De Capua;G. Dujany;M. Gersabeck;J. Harrison;C. Hombach;S. Klaver;G. Lafferty;A. McNab;C. Parkes;A. Pearce;S. Reichert;E. Rodrigues;P. Rodriguez Perez;M. Smith;S. F. Cheung;D. Derkach;T. Evans;R. Gauld;E. Greening;N. Harnew;D. Hill;P. Hunt;N. Hussain;J. Jalocha;M. John;O. Lupton;S. Malde;E. Smith;S. Stevenson;C. Thomas;S. Topp Joergensen;N. Torr;G. Wilkinson;I. Counts;P. Ilten;M. Williams;R. Andreassen;A. Davis;W. De Silva;B. Meadows;M. D. Sokoloff;L. Sun;J. Todd;J. E. Andrews;B. Hamilton;A. Jawahery;J. Wimberley;M. Artuso;S. Blusk;A. Borgia;T. Britton;S. Ely;P. Gandini;J. Garofoli;B. Gui;C. Hadjivasiliou;N. Jurik;M. Kelsey;R. Mountain;B. K. Pal;T. Skwarnicki;S. Stone;J. Wang;Z. Xing;L. Zhang;C. Baesso;M. Cruz Torres;C. Göbel;J. Molina Rodriguez;Y. Xie;D. A. Milanes;O. Grünberg;M. Heß;C. Voß;R. Waldi;T. Likhomanenko;A. Malinin;V. Shevchenko;A. Ustyuzhanin;F. Martinez Vidal;A. Oyanguren;P. Ruiz Valls;C. Sanchez Mayordomo;C. J. G. Onderwater;H. W. Wilschut;E. Pesen
2015
Abstract
The standard model of particle physics describes the fundamental particles and their interactions via the strong, electromagnetic and weak forces. It provides precise predictions for measurable quantities that can be tested experimentally. The probabilities, or branching fractions, of the strange B meson (B0s) and the B0 meson decaying into two oppositely charged muons (μ+ and μ−) are especially interesting because of their sensitivity to theories that extend the standard model. The standard model predicts that the B0s → µ+ µ− and B0 → µ+ µ− decays are very rare, with about four of the former occurring for every billion B0s mesons produced, and one of the latter occurring for every ten billion B0 mesons. A difference in the observed branching fractions with respect to the predictions of the standard model would provide a direction in which the standard model should be extended. Before the Large Hadron Collider (LHC) at CERN started operating, no evidence for either decay mode had been found. Upper limits on the branching fractions were an order of magnitude above the standard model predictions. The CMS (Compact Muon Solenoid) and LHCb (Large Hadron Collider beauty) collaborations have performed a joint analysis of the data from proton–proton collisions that they collected in 2011 at a centre-of-mass energy of seven teraelectronvolts and in 2012 at eight teraelectronvolts. Here we report the first observation of the B0s → µ+ µ− decay, with a statistical significance exceeding six standard deviations, and the best measurement so far of its branching fraction. Furthermore, we obtained evidence for the B0 → µ+ µ− decay with a statistical significance of three standard deviations. Both measurements are statistically compatible with standard model predictions and allow stringent constraints to be placed on theories beyond the standard model. The LHC experiments will resume taking data in 2015, recording proton–proton collisions at a centre-of-mass energy of 13 teraelectronvolts, which will approximately double the production rates of B0s and B0 mesons and lead to further improvements in the precision of these crucial tests of the standard model.
V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. (2015). Observation of the Rare B0s → µ+ µ− Decay from the Combined Analysis of CMS and LHCb Data. NATURE, 522(7554), 68-72 [10.1038/nature14474].
V. Khachatryan; A.M. Sirunyan; A. Tumasyan; W. Adam; T. Bergauer; M. Dragicevic; J. Erö; M. Friedl; R. Frühwirth; V.M. Ghete; C. Hartl; N. Hörmann; J....espandi
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/480595
Citazioni
ND
369
122
social impact
Conferma cancellazione
Sei sicuro che questo prodotto debba essere cancellato?
simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.