Measurement of the underlying event in the Drell–Yan process in proton–proton collisions at sqrt(s) = 7 TeV
Articolo
Data di Pubblicazione:
2012
Abstract:
A measurement of the underlying event (UE) activity
in proton–proton collisions at a center-of-mass energy
of 7 TeV is performed using Drell–Yan events in a data sample
corresponding to an integrated luminosity of 2.2 fb−1,
collected by the CMS experiment at the LHC. The activity
measured in the muonic final state (qq->mu mu) is corrected
to the particle level and compared with the predictions
of various Monte Carlo generators and hadronization
models. The dependence of the UE activity on the dimuon
invariant mass is well described by PYTHIA and HERWIG++
tunes derived from the leading jet/track approach, illustrating
the universality of the UE activity. The UE activity is
observed to be independent of the dimuon invariant mass in
the region above 40 GeV/c2, while a slow increase is observed
with increasing transverse momentum of the dimuon
system. The dependence of the UE activity on the transverse
momentum of the dimuon system is accurately described by
MADGRAPH, which simulates multiple hard emissions.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
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;M. Hoch;N. Hörmann;J. Hrubec;M. Jeitler;W. Kiesenhofer;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;L. Benucci;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;G. H. Hammad;T. Hreus;A. Léonard;P. E. Marage;L. Thomas;C. Vander Velde;P. Vanlaer;J. Wickens;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;L. Ceard;J. Favereau De Jeneret;C. Delaere;T. du Pree;D. Favart;L. Forthomme;A. Giammanco;G. Grégoire;J. Hollar;V. Lemaitre;J. Liao;O. Militaru;C. Nuttens;D. Pagano;A. Pin;K. Piotrzkowski;N. Schul;N. Beliy;T. Caebergs;E. Daubie;G. A. Alves;D. Jesus Damiao;T. Martins;M. E. Pol;M. H. G. Souza;W. L. Aldá Júnior;W. Carvalho;A. Custódio;E. M. Costa;C. 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;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;A. Cabrera;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;J. Mousa;C. Nicolaou;F. Ptochos;P. A. Razis;M. Finger;M. Finger;Y. Assran;A. Ellithi Kamel;S. Khalil;M. A. Mahmoud;A. Radi;A. Hektor;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. Peltola;E. Tuominen;J. Tuominiemi;E. Tuovinen;D. Ungaro;L. Wendland;K. Banzuzi;A. Korpela;T. Tuuva;D. Sillou;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;M. Marionneau;L. Millischer;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;S. Elgammal;R. Granier de Cassagnac;M. Haguenauer;P. Miné;C. Mironov;C. Ochando;P. Paganini;D. Sabes;R. Salerno;Y. Sirois;C. Thiebaux;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;
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