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
IRIS
A measurement of inclusive four-jet production in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The transverse momenta of jets within vertical bar eta vertical bar 4.7 are required to exceed 35, 30, 25, and 20 GeV for the first-, second-, third-, and fourth-leading jet, respectively. Differential cross sections are measured as functions of the jet transverse momentum, jet pseudorapidity, and several other observables that describe the angular correlations between the jets. The measured distributions show sensitivity to different aspects of the underlying event, parton shower modeling, and matrix element calculations. In particular, the interplay between angular correlations caused by parton shower and double-parton scattering contributions is shown to be important. The double-parton scattering contribution is extracted by means of a template fit to the data, using distributions for single-parton scattering obtained from Monte Carlo event generators and a double-parton scattering distribution constructed from inclusive single-jet events in data. The effective double-parton scattering cross section is calculated and discussed in view of previous measurements and of its dependence on the models used to describe the single-parton scattering background.
Measurement of double-parton scattering in inclusive production of four jets with low transverse momentum in proton-proton collisions at s = 13 TeV
A. Tumasyan;W. Adam;J. W. Andrejkovic;T. Bergauer;S. Chatterjee;M. Dragicevic;A. Escalante Del Valle;R. Fr??hwirth;M. Jeitler;N. Krammer;L. Lechner;D. Liko;I. Mikulec;P. Paulitsch;F. M. Pitters;J. Schieck;R. Sch??fbeck;M. Spanring;S. Templ;W. Waltenberger;C. -E. Wulz;V. Chekhovsky;A. Litomin;V. Makarenko;M. R. Darwish;E. A. De Wolf;X. Janssen;T. Kello;A. Lelek;M. Pieters;H. Rejeb Sfar;H. Van Haevermaet;P. Van Mechelen;S. Van Putte;N. Van Remortel;F. Blekman;E. S. Bols;J. D???Hondt;J. De Clercq;M. Delcourt;H. El Faham;S. Lowette;S. Moortgat;A. Morton;D. M??ller;A. R. Sahasransu;S. Tavernier;W. Van Doninck;P. Van Mulders;D. Beghin;B. Bilin;B. Clerbaux;G. De Lentdecker;L. Favart;A. Grebenyuk;A. K. Kalsi;K. Lee;M. Mahdavikhorrami;I. Makarenko;L. Moureaux;L. P??tr??;A. Popov;N. Postiau;E. Starling;L. Thomas;M. Vanden Bemden;C. Vander Velde;P. Vanlaer;D. Vannerom;L. Wezenbeek;T. Cornelis;D. Dobur;J. Knolle;L. Lambrecht;G. Mestdach;M. Niedziela;C. Roskas;A. Samalan;K. Skovpen;M. Tytgat;W. Verbeke;B. Vermassen;M. Vit;A. Bethani;G. Bruno;F. Bury;C. Caputo;P. David;C. Delaere;I. S. Donertas;A. Giammanco;K. Jaffel;Sa. Jain;V. Lemaitre;K. Mondal;J. Prisciandaro;A. Taliercio;M. Teklishyn;T. T. Tran;P. Vischia;S. Wertz;S. Wuyckens;G. A. Alves;C. Hensel;A. Moraes;W. L. Ald?? J??nior;M. Alves Gallo Pereira;M. Barroso Ferreira Filho;H. BRANDAO MAL-BOUISSON;W. Carvalho;J. Chinellato;E. M. Da Costa;G. G. Da Silveira;D. De Jesus Damiao;S. Fonseca De Souza;D. Matos Figueiredo;C. Mora Herrera;K. Mota Amarilo;L. Mundim;H. Nogima;P. Rebello Teles;A. Santoro;S. M. Silva Do Amaral;A. Sznajder;M. Thiel;F. Torres Da Silva De Araujo;A. Vilela Pereira;C. A. Bernardes;L. Calligaris;T. R. Fernandez Perez Tomei;E. M. Gregores;D. S. Lemos;P. G. Mercadante;S. F. Novaes;Sandra S. Padula;A. Aleksandrov;G. Antchev;R. Hadjiiska;P. Iaydjiev;M. Misheva;M. Rodozov;M. Shopova;G. Sultanov;A. Dimitrov;T. Ivanov;L. Litov;B. Pavlov;P. Petkov;A. Petrov;T. Cheng;W. Fang;Q. Guo;T. Javaid;M. Mittal;H. Wang;L. Yuan;M. Ahmad;G. Bauer;C. Dozen;Z. Hu;J. Martins;Y. Wang;K. Yi;E. Chapon;G. M. Chen;H. S. Chen;M. Chen;F. Iemmi;A. Kapoor;D. Leggat;H. Liao;Z. -A. LIU;V. Milosevic;F. Monti;R. Sharma;J. Tao;J. Thomas-wilsker;J. Wang;H. Zhang;S. Zhang;J. Zhao;A. Agapitos;Y. Ban;C. Chen;Q. Huang;A. Levin;Q. Li;X. Lyu;Y. Mao;S. J. Qian;D. Wang;Q. Wang;J. Xiao;M. Lu;Z. You;X. Gao;H. Okawa;Z. Lin;M. Xiao;C. Avila;A. Cabrera;C. Florez;J. Fraga;A. Sarkar;M. A. Segura Delgado;J. Mejia Guisao;F. Ramirez;J. D. Ruiz Alvarez;C. A. Salazar Gonz??lez;D. Giljanovic;N. Godinovic;D. Lelas;I. Puljak;Z. Antunovic;M. Kovac;T. Sculac;V. Brigljevic;D. Ferencek;D. Majumder;M. Roguljic;A. Starodumov;T. Susa;A. Attikis;K. Christoforou;E. Erodotou;A. Ioannou;G. Kole;M. Kolosova;S. Konstantinou;J. Mousa;C. Nicolaou;F. Ptochos;P. A. Razis;H. Rykaczewski;H. Saka;M. Finger;M. Finger;A. Kveton;E. Ayala;E. Carrera Jarrin;A. A. Abdelalim;S. Elgammal;A. Lotfy;M. A. Mahmoud;S. Bhowmik;A. Carvalho Antunes De Oliveira;R. K. Dewanjee;K. Ehataht;M. Kadastik;S. Nandan;C. Nielsen;J. Pata;M. Raidal;L. Tani;C. Veelken;P. Eerola;L. Forthomme;H. Kirschenmann;K. Osterberg;M. Voutilainen;S. Bharthuar;E. Br??cken;F. Garcia;J. Havukainen;M. S. Kim;R. Kinnunen;T. Lamp??n;K. Lassila-Perini;S. Lehti;T. Lind??n;M. Lotti;L. Martikainen;J. Ott;H. Siikonen;E. Tuominen;J. Tuominiemi;P. Luukka;H. Petrow;T. Tuuva;C. Amendola;M. Besancon;F. Couderc;M. Dejardin;D. Denegri;J. L. Faure;F. Ferri;S. Ganjour;A. Givernaud;P. Gras;G. Hamel de Monchenault;P. Jarry;B. Lenzi;E. Locci;J. Malcles;J. Rander;A. Rosowsky;M. ??. Sahin;A. Savoy-Navarro;M. Titov;G. B. Yu;S. Ahuja;F. Beaudette;M. Bonanomi;A. Buchot Perraguin;P. Busson;A. Cappati;C. Charlot;O. Davignon;B. Diab;G. Falmagne;S. Ghosh;R. Granier de Cassagnac;A. Hakimi;I. Kucher;M. Nguyen;C. Ochando;P. Paganini;J. Rembser;R. Salerno;J. B. Sauvan;Y. Sirois;A. Zabi;A. Zghiche;J. -L. Agram;J. Andrea;D. Apparu;D. Bloch;G. Bourgatte;J. -M. Brom;E. C. Chabert;C. Collard;D. Darej;J. -C. Fontaine;U. Goerlach;C. Grimault;A. -C. Le Bihan;E. Nibigira;P. Van Hove;E. Asilar;S. Beauceron;C. Bernet;G. Boudoul;C. Camen;A. Carle;N. Chanon;D. Contardo;P. Depasse;H. El Mamouni;J. Fay;S. Gascon;M. Gouzevitch;B. Ille;I. B. Laktineh;H. Lattaud;A. Lesauvage;M. Lethuillier;L. Mirabito;S. Perries;K. Shchablo;V. Sordini;L. Torterotot;G. Touquet;M. Vander Donckt;S. Viret;I. Lomidze;T. Toriashvili;Z. Tsamalaidze;L. Feld;K. Klein;M. Lipinski;D. Meuser;A. Pauls;M. P. Rauch;N. R??wert;J. Schulz;M. Teroerde;A. Dodonova;D. Eliseev;M. Erdmann;P. Fackeldey;B. Fischer;S. Ghosh;T. Hebbeker;K. Hoepfner;F. Ivone;H. Keller;L. Mastrolorenzo;M. Merschmeyer;A. Meyer;G. Mocellin;S. Mondal;S. Mukherjee;D. Noll;A. Novak;T. Pook;A. Pozdnyakov;Y. Rath;H. Reithler;J. Roemer;A. Schmidt;S. C. Schuler;A. Sharma;S. Wiedenbeck;S. Zaleski;C. Dziwok;G. Fl??gge;W. Haj Ahmad;O. Hlushchenko;T. Kress;A. Nowack;C. Pistone;O. Pooth;D. Roy;H. Sert;A. Stahl;T. Ziemons;H. Aarup Petersen;M. Aldaya Martin;P. Asmuss;I. Babounikau;S. Baxter;O. Behnke;A. Berm??dez Mart??nez;S. Bhattacharya;A. A. Bin Anuar;K. Borras;V. Botta;D. Brunner;A. Campbell;A. Cardini;C. Cheng;F. Colombina;S. Consuegra Rodr??guez;G. Correia Silva;V. Danilov;L. Didukh;G. Eckerlin;D. Eckstein;L. I. Estevez Banos;O. Filatov;E. Gallo;A. Geiser;A. Giraldi;A. Grohsjean;M. Guthoff;A. Jafari;N. Z. Jomhari;H. Jung;A. Kasem;M. Kasemann;H. Kaveh;C. Kleinwort;D. Kr??cker;W. Lange;J. Lidrych;K. Lipka;W. Lohmann;R. Mankel;I. -A. Melzer-Pellmann;J. Metwally;A. B. Meyer;M. Meyer;J. Mnich;A. Mussgiller;Y. Otarid;D. P??rez Ad??n;D. Pitzl;A. Raspereza;B. Ribeiro Lopes;J. R??benach;A. Saggio;A. Saibel;M. Savitskyi;M. Scham;V. Scheurer;C. Schwanenberger;A. Singh;R. E. Sosa Ricardo;D. Stafford;N. Tonon;O. Turkot;M. Van De Klundert;R. Walsh;D. Walter;Y. Wen;K. Wichmann;L. Wiens;C. Wissing;S. Wuchterl;R. Aggleton;S. Albrecht;S. Bein;L. Benato;A. Benecke;P. Connor;K. De Leo;M. Eich;F. Feindt;A. Fr??hlich;C. Garbers;E. Garutti;P. Gunnellini;J. Haller;A. Hinzmann;G. Kasieczka;R. Klanner;R. Kogler;T. Kramer;V. Kutzner;J. Lange;T. Lange;A. Lobanov;A. Malara;A. Nigamova;K. J. Pena Rodriguez;O. Rieger;P. Schleper;M. Schr??der;J. Schwandt;D. Schwarz;J. Sonneveld;H. Stadie;G. Steinbr??ck;A. Tews;B. Vormwald;I. Zoi;J. Bechtel;T. Berger;E. Butz;R. Caspart;T. Chwalek;W. De Boer;A. Dierlamm;A. Droll;K. El Morabit;N. Faltermann;M. Giffels;J. o. Gosewisch;A. Gottmann;F. Hartmann;C. Heidecker;U. Husemann;I. Katkov;P. Keicher;R. Koppenh??fer;S. Maier;M. Metzler;S. Mitra;Th. M??ller;M. Neukum;A. N??rnberg;G. Quast;K. Rabbertz;J. Rauser;D. Savoiu;M. Schnepf;D. Seith;I. Shvetsov;H. J. Simonis;R. Ulrich;J. Van Der Linden;R. F. Von Cube;M. Wassmer;M. Weber;S. Wieland;R. Wolf;S. Wozniewski;S. Wunsch;G. Anagnostou;P. Asenov;G. Daskalakis;T. Geralis;A. Kyriakis;D. Loukas;A. Stakia;M. Diamantopoulou;D. Karasavvas;G. Karathanasis;P. Kontaxakis;C. K. Koraka;A. Manousakis-katsikakis;A. Panagiotou;I. Papavergou;N. Saoulidou;K. Theofilatos;E. Tziaferi;K. Vellidis;E. Vourliotis;G. Bakas;K. Kousouris;I. Papakrivopoulos;G. Tsipolitis;A. Zacharopoulou;I. Evangelou;C. Foudas;P. Gianneios;P. Katsoulis;P. Kokkas;N. Manthos;I. Papadopoulos;J. Strologas;M. Csanad;K. Farkas;M. M. A. Gadallah;S. L??k??s;P. Major;K. Mandal;A. Mehta;G. Pasztor;A. J. R??dl;O. Sur??nyi;G. I. Veres;M. Bart??k;G. Bencze;C. Hajdu;D. Horvath;F. Sikler;V. Veszpremi;G. Vesztergombi;S. Czellar;J. Karancsi;J. Molnar;Z. Szillasi;D. Teyssier;P. Raics;Z. L. Trocsanyi;B. Ujvari;T. Csorgo;F. Nemes;T. Novak;J. R. Komaragiri;D. Kumar;L. Panwar;P. C. Tiwari;S. Bahinipati;D. Dash;C. Kar;P. Mal;T. Mishra;V. K. Muraleedharan Nair Bindhu;A. Nayak;P. Saha;N. Sur;S. K. Swain;D. Vats;S. Bansal;S. B. Beri;V. Bhatnagar;G. Chaudhary;S. Chauhan;N. Dhingra;R. Gupta;A. Kaur;M. Kaur;S. Kaur;P. Kumari;M. Meena;K. Sandeep;J. B. Singh;A. K. Virdi;A. Ahmed;A. Bhardwaj;B. C. Choudhary;M. Gola;S. Keshri;A. Kumar;M. Naimuddin;P. Priyanka;K. Ranjan;A. Shah;M. Bharti;R. Bhattacharya;S. Bhattacharya;D. Bhowmik;S. Dutta;S. Dutta;B. Gomber;M. Maity;P. Palit;P. K. Rout;G. Saha;B. Sahu;S. Sarkar;M. Sharan;B. Singh;S. Thakur;P. K. Behera;S. C. Behera;P. Kalbhor;A. Muhammad;R. Pradhan;P. R. Pujahari;A. Sharma;A. K. Sikdar;D. Dutta;V. Jha;V. Kumar;D. K. Mishra;K. Naskar;P. K. Netrakanti;L. M. Pant;P. Shukla;T. Aziz;S. Dugad;M. Kumar;U. Sarkar;S. Banerjee;R. Chudasama;M. Guchait;S. Karmakar;S. Kumar;G. Majumder;K. Mazumdar;S. Mukherjee;K. Alpana;S. Dube;B. Kansal;A. Laha;S. Pandey;A. Rane;A. Rastogi;S. Sharma;H. Bakhshiansohi;M. Zeinali;S. Chenarani;S. M. Etesami;M. Khakzad;M. Mohammadi Najafabadi;M. Grunewald;M. Abbrescia;R. Aly;C. Aruta;A. Colaleo;D. Creanza;N. De Filippis;M. De Palma;A. Di Florio;A. Di Pilato;W. Elmetenawee;L. Fiore;A. Gelmi;M. Gul;G. Iaselli;M. Ince;S. Lezki;G. Maggi;M. Maggi;I. Margjeka;V. Mastrapasqua;J. A. Merlin;S. My;S. Nuzzo;A. Pellecchia;A. Pompili;G. Pugliese;A. Ranieri;G. Selvaggi;L. Silvestris;F. M. Simone;R. Venditti;P. Verwilligen;G. Abbiendi;C. Battilana;D. Bonacorsi;L. Borgonovi;L. Brigliadori;R. Campanini;P. Capiluppi;A. Castro;F. R. Cavallo;M. Cuffiani;G. M. Dallavalle;T. Diotalevi;F. Fabbri;A. Fanfani;P. Giacomelli;L. Giommi;C. Grandi;L. Guiducci;S. Lo Meo;L. Lunerti;S. Marcellini;G. Masetti;F. L. Navarria;A. Perrotta;F. Primavera;A. M. Rossi;T. Rovelli;G. P. Siroli;S. Albergo;S. Costa;A. Di Mattia;R. Potenza;A. Tricomi;C. Tuve;G. Barbagli;A. Cassese;R. Ceccarelli;V. Ciulli;C. Civinini;R. D???Alessandro;E. Focardi;G. Latino;P. Lenzi;M. Lizzo;M. Meschini;S. Paoletti;R. Seidita;G. Sguazzoni;L. Viliani;L. Benussi;S. Bianco;D. Piccolo;M. Bozzo;F. Ferro;R. Mulargia;E. Robutti;S. Tosi;A. Benaglia;F. Brivio;F. Cetorelli;V. Ciriolo;F. De Guio;M. E. Dinardo;P. Dini;S. Gennai;A. Ghezzi;P. Govoni;L. Guzzi;M. Malberti;S. Malvezzi;A. Massironi;D. Menasce;L. Moroni;M. Paganoni;D. Pedrini;S. Ragazzi;N. Redaelli;T. Tabarelli de Fatis;D. Valsecchi;D. Zuolo;S. Buontempo;F. Carnevali;N. Cavallo;A. De Iorio;F. Fabozzi;A. O. M. Iorio;L. Lista;S. Meola;P. Paolucci;B. Rossi;C. Sciacca;P. Azzi;N. Bacchetta;D. Bisello;P. Bortignon;A. Bragagnolo;R. Carlin;P. Checchia;T. Dorigo;U. Dosselli;F. Gasparini;U. Gasparini;S. Y. Hoh;L. Layer;M. Margoni;A. T. Meneguzzo;J. Pazzini;M. Presilla;P. Ronchese;R. Rossin;F. Simonetto;G. Strong;M. Tosi;H. YARAR;M. Zanetti;P. Zotto;A. Zucchetta;G. Zumerle;C. Aime???;A. Braghieri;S. Calzaferri;D. Fiorina;P. Montagna;S. P. Ratti;V. Re;C. Riccardi;P. Salvini;I. Vai;P. Vitulo;G. M. Bilei;D. Ciangottini;L. Fan??;P. Lariccia;M. Magherini;G. Mantovani;V. Mariani;M. Menichelli;F. Moscatelli;A. Piccinelli;A. Rossi;A. Santocchia;D. Spiga;T. Tedeschi;P. Azzurri;G. Bagliesi;V. Bertacchi;L. Bianchini;T. Boccali;E. Bossini;R. Castaldi;M. A. Ciocci;R. Dell???Orso;M. R. Di Domenico;S. Donato;A. Giassi;M. T. Grippo;F. Ligabue;E. Manca;G. Mandorli;A. Messineo;F. Palla;S. Parolia;G. Ramirez-Sanchez;A. Rizzi;G. Rolandi;S. Roy Chowdhury;A. Scribano;N. Shafiei;P. Spagnolo;R. Tenchini;G. Tonelli;N. Turini;A. Venturi;P. G. Verdini;M. Campana;F. Cavallari;M. Cipriani;D. Del Re;E. Di Marco;M. Diemoz;E. Longo;P. Meridiani;G. Organtini;F. Pandolfi;R. Paramatti;C. Quaranta;S. Rahatlou;C. Rovelli;F. Santanastasio;L. Soffi;R. Tramontano;N. Amapane;R. Arcidiacono;S. Argiro;M. Arneodo;N. Bartosik;R. Bellan;A. Bellora;J. Berenguer Antequera;C. Biino;N. Cartiglia;S. Cometti;M. Costa;R. Covarelli;N. Demaria;B. Kiani;F. Legger;C. Mariotti;S. Maselli;E. Migliore;E. Monteil;M. Monteno;M. M. Obertino;G. Ortona;L. Pacher;N. Pastrone;M. Pelliccioni;G. L. Pinna Angioni;M. Ruspa;K. Shchelina;F. Siviero;V. Sola;A. Solano;D. Soldi;A. Staiano;M. Tornago;D. Trocino;A. Vagnerini;S. Belforte;V. Candelise;M. Casarsa;F. Cossutti;A. Da Rold;G. Della Ricca;G. Sorrentino;F. Vazzoler;S. Dogra;C. Huh;B. Kim;D. H. Kim;G. N. Kim;J. Kim;J. Lee;S. W. Lee;C. S. Moon;Y. D. Oh;S. I. Pak;B. C. Radburn-Smith;S. Sekmen;Y. C. Yang;H. Kim;D. H. Moon;B. Francois;T. J. Kim;J. Park;S. Cho;S. Choi;Y. Go;B. Hong;K. Lee;K. S. Lee;J. Lim;J. Park;S. K. Park;J. Yoo;J. Goh;A. Gurtu;H. S. Kim;Y. Kim;J. Almond;J. H. Bhyun;J. Choi;S. Jeon;J. Kim;J. S. Kim;S. Ko;H. Kwon;H. Lee;S. Lee;B. H. Oh;M. Oh;S. B. Oh;H. Seo;U. K. Yang;I. Yoon;W. Jang;D. Jeon;D. Y. Kang;Y. Kang;J. H. Kim;S. Kim;B. Ko;J. S. H. Lee;Y. Lee;I. C. Park;Y. Roh;M. S. Ryu;D. Song;I. J. Watson;S. Yang;S. Ha;H. D. Yoo;Y. Jeong;H. Lee;Y. Lee;I. Yu;T. Beyrouthy;Y. Maghrbi;T. Torims;V. Veckalns;M. Ambrozas;A. Juodagalvis;A. Rinkevicius;G. Tamulaitis;A. Vaitkevicius;N. Bin Norjoharuddeen;W. A. T. Wan Abdullah;M. N. Yusli;Z. Zolkapli;J. F. Benitez;A. Castaneda Hernandez;M. Le??n Coello;J. A. Murillo Quijada;A. Sehrawat;L. Valencia Palomo;G. Ayala;H. Castilla-Valdez;I. Heredia-De La Cruz;R. Lopez-Fernandez;C. A. Mondragon Herrera;D. A. Perez Navarro;A. Sanchez-Hernandez;S. Carrillo Moreno;C. Oropeza Barrera;M. Ramirez-Garcia;F. Vazquez Valencia;I. Pedraza;H. A. Salazar Ibarguen;C. Uribe Estrada;J. Mijuskovic;N. Raicevic;D. Krofcheck;S. Bheesette;P. H. Butler;A. Ahmad;M. I. Asghar;A. Awais;M. I. M. Awan;H. R. Hoorani;W. A. Khan;M. A. Shah;M. Shoaib;M. Waqas;V. Avati;L. Grzanka;M. Malawski;H. Bialkowska;M. Bluj;B. Boimska;M. G??rski;M. Kazana;M. Szleper;P. Zalewski;K. Bunkowski;K. Doroba;A. Kalinowski;M. Konecki;J. Krolikowski;M. Walczak;M. Araujo;P. Bargassa;D. Bastos;A. Boletti;P. Faccioli;M. Gallinaro;J. Hollar;N. Leonardo;T. Niknejad;M. Pisano;J. Seixas;O. Toldaiev;J. Varela;S. Afanasiev;D. Budkouski;I. Golutvin;I. Gorbunov;V. Karjavine;V. Korenkov;A. Lanev;A. Malakhov;V. Matveev;V. Palichik;V. Perelygin;M. Savina;D. Seitova;V. Shalaev;S. Shmatov;S. Shulha;V. Smirnov;O. Teryaev;N. Voytishin;B. S. Yuldashev;A. Zarubin;I. Zhizhin;G. Gavrilov;V. Golovtcov;Y. Ivanov;V. Kim;E. Kuznetsova;V. Murzin;V. Oreshkin;I. Smirnov;D. Sosnov;V. Sulimov;L. Uvarov;S. Volkov;A. Vorobyev;Yu. Andreev;A. Dermenev;S. Gninenko;N. Golubev;A. Karneyeu;D. Kirpichnikov;M. Kirsanov;N. Krasnikov;A. Pashenkov;G. Pivovarov;D. Tlisov;A. Toropin;V. Epshteyn;V. Gavrilov;N. Lychkovskaya;A. Nikitenko;V. Popov;A. Spiridonov;A. Stepennov;M. Toms;E. Vlasov;A. Zhokin;T. Aushev;M. Chadeeva;A. Oskin;P. Parygin;E. Popova;V. Rusinov;V. Andreev;M. Azarkin;I. Dremin;M. Kirakosyan;A. Terkulov;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;V. Blinov;T. Dimova;L. Kardapoltsev;A. Kozyrev;I. Ovtin;Y. Skovpen;I. Azhgirey;I. Bayshev;D. Elumakhov;V. Kachanov;D. Konstantinov;P. Mandrik;V. Petrov;R. Ryutin;S. Slabospitskii;A. Sobol;S. Troshin;N. Tyurin;A. Uzunian;A. Volkov;A. Babaev;V. Okhotnikov;V. Borchsh;V. Ivanchenko;E. Tcherniaev;P. Adzic;M. Dordevic;P. Milenovic;J. Milosevic;M. Aguilar-Benitez;J. Alcaraz Maestre;A. ??lvarez Fern??ndez;I. Bachiller;M. Barrio Luna;Cristina F. Bedoya;C. A. Carrillo Montoya;M. Cepeda;M. Cerrada;N. Colino;B. De La Cruz;A. Delgado Peris;J. P. Fern??ndez Ramos;J. Flix;M. C. Fouz;O. Gonzalez Lopez;S. Goy Lopez;J. M. Hernandez;M. I. Josa;J. Le??n Holgado;D. Moran;??. Navarro Tobar;A. P??rez-Calero Yzquierdo;J. Puerta Pelayo;I. Redondo;L. Romero;S. S??nchez Navas;L. Urda G??mez;C. Willmott;J. F. de Troc??niz;R. Reyes-Almanza;B. Alvarez Gonzalez;J. Cuevas;C. Erice;J. Fernandez Menendez;S. Folgueras;I. Gonzalez Caballero;E. Palencia Cortezon;C. Ram??n ??lvarez;J. Ripoll Sau;V. Rodr??guez Bouza;A. Trapote;N. Trevisani;J. A. Brochero Cifuentes;I. J. Cabrillo;A. Calderon;J. Duarte Campderros;M. Fernandez;C. Fernandez Madrazo;P. J. Fern??ndez Manteca;A. Garc??a Alonso;G. Gomez;C. Martinez Rivero;P. Martinez Ruiz del Arbol;F. Matorras;P. Matorras Cuevas;J. Piedra Gomez;C. Prieels;T. Rodrigo;A. Ruiz-Jimeno;L. Scodellaro;I. Vila;J. M. Vizan Garcia;MK Jayananda;B. Kailasapathy;D. U. J. Sonnadara;DDC Wickramarathna;W. G. D. Dharmaratna;K. Liyanage;N. Perera;N. Wickramage;T. K. Aarrestad;D. Abbaneo;J. Alimena;E. Auffray;G. Auzinger;J. Baechler;P. Baillon;D. Barney;J. Bendavid;M. Bianco;A. Bocci;T. Camporesi;M. Capeans Garrido;G. Cerminara;S. S. Chhibra;L. Cristella;D. d???Enterria;A. Dabrowski;N. Daci;A. David;A. De Roeck;M. M. Defranchis;M. Deile;M. Dobson;M. D??nser;N. Dupont;A. Elliott-Peisert;N. Emriskova;F. Fallavollita;D. Fasanella;S. Fiorendi;A. Florent;G. Franzoni;W. Funk;S. Giani;D. Gigi;K. Gill;F. Glege;L. Gouskos;M. Haranko;J. Hegeman;Y. Iiyama;V. Innocente;T. James;P. Janot;J. Kaspar;J. Kieseler;M. Komm;N. Kratochwil;C. Lange;S. Laurila;P. Lecoq;K. Long;C. Louren??o;L. Malgeri;S. Mallios;M. Mannelli;A. C. Marini;F. Meijers;S. Mersi;E. Meschi;F. Moortgat;M. Mulders;S. Orfanelli;L. Orsini;F. Pantaleo;L. Pape;E. Perez;M. Peruzzi;A. Petrilli;G. Petrucciani;A. Pfeiffer;M. Pierini;D. Piparo;M. Pitt;H. Qu;T. Quast;D. Rabady;A. Racz;G. Reales Guti??rrez;M. Rieger;M. Rovere;H. Sakulin;J. Salfeld-Nebgen;S. Scarfi;C. Sch??fer;C. Schwick;M. Selvaggi;A. Sharma;P. Silva;W. Snoeys;P. Sphicas;S. Summers;V. R. Tavolaro;D. Treille;A. Tsirou;G. P. Van Onsem;M. Verzetti;J. Wanczyk;K. A. Wozniak;W. D. Zeuner;L. Caminada;A. Ebrahimi;W. Erdmann;R. Horisberger;Q. Ingram;H. C. Kaestli;D. Kotlinski;U. Langenegger;M. Missiroli;T. Rohe;K. Androsov;M. Backhaus;P. Berger;A. Calandri;N. Chernyavskaya;A. De Cosa;G. Dissertori;M. Dittmar;M. Doneg??;C. Dorfer;F. Eble;T. A. G??mez Espinosa;C. Grab;D. Hits;W. Lustermann;A. -M. Lyon;R. A. Manzoni;C. Martin Perez;M. T. Meinhard;F. Micheli;F. Nessi-Tedaldi;J. Niedziela;F. Pauss;V. Perovic;G. Perrin;S. Pigazzini;M. G. Ratti;M. Reichmann;C. Reissel;T. Reitenspiess;B. Ristic;D. Ruini;D. A. Sanz Becerra;M. Sch??nenberger;V. Stampf;J. Steggemann;R. Wallny;D. H. Zhu;C. Amsler;P. B??rtschi;C. Botta;D. Brzhechko;M. F. Canelli;K. Cormier;A. De Wit;R. Del Burgo;J. K. Heikkil??;M. Huwiler;A. Jofrehei;B. Kilminster;S. Leontsinis;A. Macchiolo;P. Meiring;V. M. Mikuni;U. Molinatti;I. Neutelings;A. Reimers;P. Robmann;S. Sanchez Cruz;K. Schweiger;Y. Takahashi;C. Adloff;C. M. Kuo;W. Lin;A. Roy;T. Sarkar;S. S. Yu;L. Ceard;Y. Chao;K. F. Chen;P. H. Chen;W. -S. Hou;Y. y. Li;R. -S. Lu;E. Paganis;A. Psallidas;A. Steen;H. y. Wu;E. Yazgan;P. r. Yu;B. Asavapibhop;C. Asawatangtrakuldee;N. Srimanobhas;F. Boran;S. Damarseckin;Z. S. Demiroglu;F. Dolek;I. Dumanoglu;E. Eskut;Y. Guler;E. Gurpinar Guler;I. Hos;C. Isik;O. Kara;A. Kayis Topaksu;U. Kiminsu;G. Onengut;K. Ozdemir;A. Polatoz;A. E. Simsek;B. Tali;U. G. Tok;S. Turkcapar;I. S. Zorbakir;C. Zorbilmez;B. Isildak;G. Karapinar;K. Ocalan;M. Yalvac;B. Akgun;I. O. Atakisi;E. G??lmez;M. Kaya;O. Kaya;??. ??z??elik;S. Tekten;E. A. Yetkin;A. Cakir;K. Cankocak;Y. Komurcu;S. Sen;S. Cerci;B. Kaynak;S. Ozkorucuklu;D. Sunar Cerci;B. Grynyov;L. Levchuk;D. Anthony;E. Bhal;S. Bologna;J. J. Brooke;A. Bundock;E. Clement;D. Cussans;H. Flacher;J. Goldstein;G. P. Heath;H. F. Heath;L. Kreczko;B. Krikler;S. Paramesvaran;S. Seif El Nasr-Storey;V. J. Smith;N. Stylianou;R. White;K. W. Bell;A. Belyaev;C. Brew;R. M. Brown;D. J. A. Cockerill;K. V. Ellis;K. Harder;S. Harper;J. Linacre;K. Manolopoulos;D. M. Newbold;E. Olaiya;D. Petyt;T. Reis;T. Schuh;C. H. Shepherd-Themistocleous;I. R. Tomalin;T. Williams;R. Bainbridge;P. Bloch;S. Bonomally;J. Borg;S. Breeze;O. Buchmuller;V. Cepaitis;G. S. Chahal;D. Colling;P. Dauncey;G. Davies;M. Della Negra;S. Fayer;G. Fedi;G. Hall;M. H. Hassanshahi;G. Iles;J. Langford;L. Lyons;A. -M. Magnan;S. Malik;A. Martelli;J. Nash;M. Pesaresi;D. M. Raymond;A. Richards;A. Rose;E. Scott;C. Seez;A. Shtipliyski;A. Tapper;K. Uchida;T. Virdee;N. Wardle;S. N. Webb;D. Winterbottom;A. G. Zecchinelli;K. Coldham;J. E. Cole;A. Khan;P. Kyberd;I. D. Reid;L. Teodorescu;S. Zahid;S. Abdullin;A. Brinkerhoff;B. Caraway;J. Dittmann;K. Hatakeyama;A. R. Kanuganti;B. McMaster;N. Pastika;S. Sawant;C. Sutantawibul;J. Wilson;R. Bartek;A. Dominguez;R. Uniyal;A. M. Vargas Hernandez;A. Buccilli;S. I. Cooper;D. Di Croce;S. V. Gleyzer;C. Henderson;C. U. Perez;P. Rumerio;C. West;A. Akpinar;A. Albert;D. Arcaro;C. Cosby;Z. Demiragli;E. Fontanesi;D. Gastler;J. Rohlf;K. Salyer;D. Sperka;D. Spitzbart;I. Suarez;A. Tsatsos;S. Yuan;D. Zou;G. Benelli;B. Burkle;X. Coubez;D. Cutts;M. Hadley;U. Heintz;J. M. Hogan;G. Landsberg;K. T. Lau;M. Lukasik;J. Luo;M. Narain;S. Sagir;E. Usai;W. Y. Wong;X. Yan;D. Yu;W. Zhang;J. Bonilla;C. Brainerd;R. Breedon;M. Calderon De La Barca Sanchez;M. Chertok;J. Conway;P. T. Cox;R. Erbacher;G. Haza;F. Jensen;O. Kukral;R. Lander;M. Mulhearn;D. Pellett;B. Regnery;D. Taylor;Y. Yao;F. Zhang;M. Bachtis;R. Cousins;A. Datta;D. Hamilton;J. Hauser;M. Ignatenko;M. A. Iqbal;T. Lam;N. Mccoll;W. A. Nash;S. Regnard;D. Saltzberg;B. Stone;V. Valuev;K. Burt;Y. Chen;R. Clare;J. W. Gary;M. Gordon;G. Hanson;G. Karapostoli;O. R. Long;N. Manganelli;M. Olmedo Negrete;W. Si;S. Wimpenny;Y. Zhang;J. G. Branson;P. Chang;S. Cittolin;S. Cooperstein;N. Deelen;J. Duarte;R. Gerosa;L. Giannini;D. Gilbert;J. Guiang;R. Kansal;V. Krutelyov;R. Lee;J. Letts;M. Masciovecchio;S. May;M. Pieri;B. V. Sathia Narayanan;V. Sharma;M. Tadel;A. Vartak;F. W??rthwein;Y. Xiang;A. Yagil;N. Amin;C. Campagnari;M. Citron;A. Dorsett;V. Dutta;J. Incandela;M. Kilpatrick;J. Kim;B. Marsh;H. Mei;M. Oshiro;M. Quinnan;J. Richman;U. Sarica;D. Stuart;S. Wang;A. Bornheim;O. Cerri;I. Dutta;J. M. Lawhorn;N. Lu;J. Mao;H. B. Newman;J. Ngadiuba;T. Q. Nguyen;M. Spiropulu;J. R. Vlimant;C. Wang;S. Xie;Z. Zhang;R. Y. Zhu;J. Alison;S. An;M. B. Andrews;P. Bryant;T. Ferguson;A. Harilal;C. Liu;T. Mudholkar;M. Paulini;A. Sanchez;J. P. Cumalat;W. T. Ford;A. Hassani;E. MacDonald;R. Patel;A. Perloff;C. Savard;K. Stenson;K. A. Ulmer;S. R. Wagner;J. Alexander;S. Bright-thonney;Y. Cheng;D. J. Cranshaw;S. Hogan;J. Monroy;J. R. Patterson;D. Quach;J. Reichert;M. Reid;A. Ryd;W. Sun;J. Thom;P. Wittich;R. Zou;M. Albrow;M. Alyari;G. Apollinari;A. Apresyan;A. Apyan;S. Banerjee;L. A. T. Bauerdick;D. Berry;J. Berryhill;P. C. Bhat;K. Burkett;J. N. Butler;A. Canepa;G. B. Cerati;H. W. K. Cheung;F. Chlebana;M. Cremonesi;K. F. Di Petrillo;V. D. Elvira;Y. Feng;J. Freeman;Z. Gecse;L. Gray;D. Green;S. Gr??nendahl;O. Gutsche;R. M. Harris;R. Heller;T. C. Herwig;J. Hirschauer;B. Jayatilaka;S. Jindariani;M. Johnson;U. Joshi;T. Klijnsma;B. Klima;K. H. M. Kwok;S. Lammel;D. Lincoln;R. Lipton;T. Liu;C. Madrid;K. Maeshima;C. Mantilla;D. Mason;P. McBride;P. Merkel;S. Mrenna;S. Nahn;V. O???Dell;V. Papadimitriou;K. Pedro;C. Pena;O. Prokofyev;F. Ravera;A. Reinsvold Hall;L. Ristori;B. Schneider;E. Sexton-Kennedy;N. Smith;A. Soha;W. J. Spalding;L. Spiegel;S. Stoynev;J. Strait;L. Taylor;S. Tkaczyk;N. V. Tran;L. Uplegger;E. W. Vaandering;H. A. Weber;D. Acosta;P. Avery;D. Bourilkov;L. Cadamuro;V. Cherepanov;F. Errico;R. D. Field;D. Guerrero;B. M. Joshi;M. Kim;E. Koenig;J. Konigsberg;A. Korytov;K. H. Lo;K. Matchev;N. Menendez;G. Mitselmakher;A. Muthirakalayil Madhu;N. Rawal;D. Rosenzweig;S. Rosenzweig;K. Shi;J. Sturdy;J. Wang;E. Yigitbasi;X. Zuo;T. Adams;A. Askew;D. Diaz;R. Habibullah;V. Hagopian;K. F. Johnson;R. Khurana;T. Kolberg;G. Martinez;H. Prosper;C. Schiber;R. Yohay;J. Zhang;M. M. Baarmand;S. Butalla;T. Elkafrawy;M. Hohlmann;R. Kumar Verma;D. Noonan;M. Rahmani;M. Saunders;F. Yumiceva;M. R. Adams;H. Becerril Gonzalez;R. Cavanaugh;X. Chen;S. Dittmer;O. Evdokimov;C. E. Gerber;D. A. Hangal;D. J. Hofman;A. H. Merrit;C. Mills;G. Oh;T. Roy;S. Rudrabhatla;M. B. Tonjes;N. Varelas;J. Viinikainen;X. Wang;Z. Wu;Z. Ye;M. Alhusseini;K. Dilsiz;R. P. Gandrajula;O. K. K??seyan;J. -P. Merlo;A. Mestvirishvili;J. Nachtman;H. Ogul;Y. Onel;A. Penzo;C. Snyder;E. Tiras;O. Amram;B. Blumenfeld;L. Corcodilos;J. Davis;M. Eminizer;A. V. Gritsan;S. Kyriacou;P. Maksimovic;J. Roskes;M. Swartz;T. ??. V??mi;J. Anguiano;C. Baldenegro Barrera;P. Baringer;A. Bean;A. Bylinkin;T. Isidori;S. Khalil;J. King;G. Krintiras;A. Kropivnitskaya;C. Lindsey;N. Minafra;M. Murray;C. Rogan;C. Royon;R. Salvatico;S. Sanders;E. Schmitz;C. Smith;J. D. Tapia Takaki;Q. Wang;J. Williams;G. Wilson;S. Duric;A. Ivanov;K. Kaadze;D. Kim;Y. Maravin;T. Mitchell;A. Modak;K. Nam;F. Rebassoo;D. Wright;E. Adams;A. Baden;O. Baron;A. Belloni;S. C. Eno;N. J. Hadley;S. Jabeen;R. G. Kellogg;T. Koeth;A. C. Mignerey;S. Nabili;M. Seidel;A. Skuja;L. Wang;K. Wong;D. Abercrombie;G. Andreassi;R. Bi;S. Brandt;W. Busza;I. A. Cali;Y. Chen;M. D???Alfonso;J. Eysermans;G. Gomez Ceballos;M. Goncharov;P. Harris;M. Hu;M. Klute;D. Kovalskyi;J. Krupa;Y. -J. Lee;B. Maier;C. Mironov;C. Paus;D. Rankin;C. Roland;G. Roland;Z. Shi;G. S. F. Stephans;K. Tatar;J. Wang;Z. Wang;B. Wyslouch;R. M. Chatterjee;A. Evans;P. Hansen;J. Hiltbrand;Sh. Jain;M. Krohn;Y. Kubota;J. Mans;M. Revering;R. Rusack;R. Saradhy;N. Schroeder;N. Strobbe;M. A. Wadud;K. Bloom;M. Bryson;S. Chauhan;D. R. Claes;C. Fangmeier;L. Finco;F. Golf;J. R. Gonz??lez Fern??ndez;C. Joo;I. Kravchenko;M. Musich;I. Reed;J. E. Siado;G. R. Snow;W. Tabb;F. Yan;G. Agarwal;H. Bandyopadhyay;L. Hay;I. Iashvili;A. Kharchilava;C. McLean;D. Nguyen;J. Pekkanen;S. Rappoccio;A. Williams;G. Alverson;E. Barberis;C. Freer;Y. Haddad;A. Hortiangtham;J. Li;G. Madigan;B. Marzocchi;D. M. Morse;V. Nguyen;T. Orimoto;A. Parker;L. Skinnari;A. Tishelman-Charny;T. Wamorkar;B. Wang;A. Wisecarver;D. Wood;S. Bhattacharya;J. Bueghly;Z. Chen;A. Gilbert;T. Gunter;K. A. Hahn;N. Odell;M. H. Schmitt;M. Velasco;R. Band;R. Bucci;A. Das;N. Dev;R. Goldouzian;M. Hildreth;K. Hurtado Anampa;C. Jessop;K. Lannon;N. Loukas;N. Marinelli;I. Mcalister;T. McCauley;F. Meng;K. Mohrman;Y. Musienko;R. Ruchti;P. Siddireddy;M. Wayne;A. Wightman;M. Wolf;M. Zarucki;L. Zygala;B. Bylsma;B. Cardwell;L. S. Durkin;B. Francis;C. Hill;M. Nunez Ornelas;K. Wei;B. L. Winer;B. R. Yates;F. M. Addesa;B. Bonham;P. Das;G. Dezoort;P. Elmer;A. Frankenthal;B. Greenberg;N. Haubrich;S. Higginbotham;A. Kalogeropoulos;G. Kopp;S. Kwan;D. Lange;M. T. Lucchini;D. Marlow;K. Mei;I. Ojalvo;J. Olsen;C. Palmer;D. Stickland;C. Tully;S. Malik;S. Norberg;A. S. Bakshi;V. E. Barnes;R. Chawla;S. Das;L. Gutay;M. Jones;A. W. Jung;S. Karmarkar;M. Liu;G. Negro;N. Neumeister;G. Paspalaki;C. C. Peng;S. Piperov;A. Purohit;J. F. Schulte;M. Stojanovic;J. Thieman;F. Wang;R. Xiao;W. Xie;J. Dolen;N. Parashar;A. Baty;M. Decaro;S. Dildick;K. M. Ecklund;S. Freed;P. Gardner;F. J. M. Geurts;A. Kumar;W. Li;B. P. Padley;R. Redjimi;W. Shi;A. G. Stahl Leiton;S. Yang;L. Zhang;Y. Zhang;A. Bodek;P. de Barbaro;R. Demina;J. L. Dulemba;C. Fallon;T. Ferbel;M. Galanti;A. Garcia-Bellido;O. Hindrichs;A. Khukhunaishvili;E. Ranken;R. Taus;B. Chiarito;J. P. Chou;A. Gandrakota;Y. Gershtein;E. Halkiadakis;A. Hart;M. Heindl;E. Hughes;S. Kaplan;O. Karacheban;I. Laflotte;A. Lath;R. Montalvo;K. Nash;M. Osherson;S. Salur;S. Schnetzer;S. Somalwar;R. Stone;S. A. Thayil;S. Thomas;H. Wang;H. Acharya;A. G. Delannoy;S. Spanier;O. Bouhali;M. Dalchenko;A. Delgado;R. Eusebi;J. Gilmore;T. Huang;T. Kamon;H. Kim;S. Luo;S. Malhotra;R. Mueller;D. Overton;D. Rathjens;A. Safonov;N. Akchurin;J. Damgov;V. Hegde;S. Kunori;K. Lamichhane;S. W. Lee;T. Mengke;S. Muthumuni;T. Peltola;I. Volobouev;Z. Wang;A. Whitbeck;E. Appelt;S. Greene;A. Gurrola;W. Johns;A. Melo;H. Ni;K. Padeken;F. Romeo;P. Sheldon;S. Tuo;J. Velkovska;M. W. Arenton;B. Cox;G. Cummings;J. Hakala;R. Hirosky;M. Joyce;A. Ledovskoy;A. Li;C. Neu;B. Tannenwald;S. White;E. Wolfe;N. Poudyal;K. Black;T. Bose;J. Buchanan;C. Caillol;S. Dasu;I. De Bruyn;P. Everaerts;F. Fienga;C. Galloni;H. He;M. Herndon;A. Herv??;U. Hussain;A. Lanaro;A. Loeliger;R. Loveless;J. Madhusudanan Sreekala;A. Mallampalli;A. Mohammadi;D. Pinna;A. Savin;V. Shang;V. Sharma;W. H. Smith;D. Teague;S. Trembath-reichert;W. Vetens
2022-01-01
Abstract
A measurement of inclusive four-jet production in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. The transverse momenta of jets within vertical bar eta vertical bar 4.7 are required to exceed 35, 30, 25, and 20 GeV for the first-, second-, third-, and fourth-leading jet, respectively. Differential cross sections are measured as functions of the jet transverse momentum, jet pseudorapidity, and several other observables that describe the angular correlations between the jets. The measured distributions show sensitivity to different aspects of the underlying event, parton shower modeling, and matrix element calculations. In particular, the interplay between angular correlations caused by parton shower and double-parton scattering contributions is shown to be important. The double-parton scattering contribution is extracted by means of a template fit to the data, using distributions for single-parton scattering obtained from Monte Carlo event generators and a double-parton scattering distribution constructed from inclusive single-jet events in data. The effective double-parton scattering cross section is calculated and discussed in view of previous measurements and of its dependence on the models used to describe the single-parton scattering background.
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/11571/1477379
Citazioni
ND
ND
6
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.