The first measurement of the charged component of the underlying event using the novel “jet-area/median” approach is presented for proton-proton collisions at centre-of-mass energies of 0.9 and 7 TeV. The data were recorded in 2010 with the CMS experiment at the LHC. A new observable, sensitive to soft particle production, is introduced and investigated inclusively and as a function of the event scale defined by the transverse momentum of the leading jet. Various phenomenological models are compared to data, with and without corrections for detector effects. None of the examined models describe the data satisfactorily.
Measurement of the underlying event activity in pp collisions at s = 0.9 and 7 TeV with the novel jet-area/median approach / 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;F. Teischinger;P. Wagner;W. Waltenberger;G. Walzel;E. Widl;C.-E. Wulz;V. Mossolov;N. Shumeiko;J. Suarez Gonzalez;S. Bansal;K. Cerny;T. Cornelis;E. A. Wolf;X. Janssen;S. Luyckx;T. Maes;L. Mucibello;S. Ochesanu;B. Roland;R. Rougny;M. Selvaggi;H. Haevermaet;P. Mechelen;N. Remortel;A. Spilbeeck;F. Blekman;S. Blyweert;J. D’Hondt;R. Gonzalez Suarez;A. Kalogeropoulos;M. Maes;A. Olbrechts;W. Doninck;P. Mulders;G. P. Onsem;I. Villella;O. Charaf;B. Clerbaux;G. Lentdecker;V. Dero;A. P. R. Gay;T. Hreus;A. Léonard;P. E. Marage;L. Thomas;C. Vander Velde;P. Vanlaer;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;A. Caudron;L. Ceard;C. Delaere;T. 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;N. Beliy;T. Caebergs;E. Daubie;G. H. Hammad;G. A. Alves;M. Correa Martins;D. Jesus Damiao;T. Martins;M. E. Pol;M. H. G. Souza;W. L. Aldá;W. Carvalho;A. Custódio;E. M. Costa;C. Oliveira Martins;S. Fonseca Souza;D. Matos Figueiredo;L. Mundim;H. Nogima;V. Oguri;W. L. Prado Silva;A. Santoro;S. M. Silva Do Amaral;L. Soares Jorge;A. Sznajder;T. S. Anjos;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;A. Karadzhinova;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;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. Dzelalija;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;S. Czellar;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. 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Gavrilov;M. Kossov;N. Lychkovskaya;V. Popov;G. Safronov;S. Semenov;V. Stolin;E. Vlasov;A. Zhokin;A. Belyaev;E. Boos;M. Dubinin;L. Dudko;A. Ershov;A. Gribushin;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. 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;I. Redondo;L. Romero;J. 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Measurement of the underlying event activity in pp collisions at s = 0.9 and 7 TeV with the novel jet-area/median approach
CIULLI, VITALIANO;D'ALESSANDRO, RAFFAELLO;FOCARDI, ETTORE;GONZI, SANDRO;P. Lenzi;
2012
Abstract
The first measurement of the charged component of the underlying event using the novel “jet-area/median” approach is presented for proton-proton collisions at centre-of-mass energies of 0.9 and 7 TeV. The data were recorded in 2010 with the CMS experiment at the LHC. A new observable, sensitive to soft particle production, is introduced and investigated inclusively and as a function of the event scale defined by the transverse momentum of the leading jet. Various phenomenological models are compared to data, with and without corrections for detector effects. None of the examined models describe the data satisfactorily.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.