Study of the underlying event at forward rapidity in pp collisions at sqrt{s}=0.9,2.76 and 7 TeV
Articolo
Data di Pubblicazione:
2013
Abstract:
: The underlying event activity in proton-proton collisions at forward pseudorapidity
(−6.6 < η < −5.2) is studied with the CMS detector at the LHC, using a novel
observable: the ratio of the forward energy density, dE/dη, for events with a chargedparticle
jet produced at central pseudorapidity (|η
jet| < 2) to the forward energy density
for inclusive events. This forward energy density ratio is measured as a function of the central
jet transverse momentum, pT, at three different pp centre-of-mass energies (√
s = 0.9,
2.76, and 7 TeV). In addition, the √
s evolution of the forward energy density is studied
in inclusive events and in events with a central jet. The results are compared to those of
Monte Carlo event generators for pp collisions and are discussed in terms of the underlying
event. Whereas the dependence of the forward energy density ratio on jet pT at each
√s separately can be well reproduced by some models, all models fail to simultaneously
describe the increase of the forward energy density with √s in both inclusive events and
in events with a central jet.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
S. Chatrchyan;V. Khachatryan;A. M. Sirunyan;A. Tumasyan;W. Adam;E. Aguilo;T. Bergauer;M. Dragicevic;J. Erö;C. Fabjan;M. Friedl;R. Frühwirth;V. M. Ghete;N. Hörmann;J. Hrubec;M. Jeitler;W. Kiesenhofer;V. Knünz;M. Krammer;I. Krätschmer;D. Liko;I. Mikulec;M. Pernicka;D. Rabady;B. Rahbaran;C. Rohringer;H. Rohringer;R. Schöfbeck;J. Strauss;A. Taurok;W. Waltenberger;C.-E. Wulz;V. Mossolov;N. Shumeiko;J. Suarez Gonzalez;S. Alderweireldt;M. Bansal;S. Bansal;T. Cornelis;E. A. Wolf;X. Janssen;S. Luyckx;L. Mucibello;S. Ochesanu;B. Roland;R. Rougny;H. Haevermaet;P. Mechelen;N. Remortel;A. Spilbeeck;F. Blekman;S. Blyweert;J. D’Hondt;R. Gonzalez Suarez;A. Kalogeropoulos;M. Maes;A. Olbrechts;S. Tavernier;W. Doninck;P. Mulders;G. P. Onsem;I. Villella;B. Clerbaux;G. Lentdecker;V. Dero;A. P. R. Gay;T. Hreus;A. Léonard;P. E. Marage;A. Mohammadi;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;M. Sigamani;N. Strobbe;F. Thyssen;M. Tytgat;S. Walsh;E. Yazgan;N. Zaganidis;S. Basegmez;G. Bruno;R. Castello;L. Ceard;C. Delaere;T. Pree;D. Favart;L. Forthomme;A. Giammanco;J. Hollar;V. Lemaitre;J. Liao;O. Militaru;C. Nuttens;D. Pagano;A. Pin;K. Piotrzkowski;M. Selvaggi;J. M. Vizan Garcia;N. Beliy;T. Caebergs;E. Daubie;G. H. Hammad;G. A. Alves;M. Correa Martins Junior;T. Martins;M. E. Pol;M. H. G. Souza;W. L. Aldá Júnior;W. Carvalho;J. Chinellato;A. Custódio;E. M. Costa;D. Jesus Damiao;C. Oliveira Martins;S. Fonseca De Souza;H. Malbouisson;M. Malek;D. Matos Figueiredo;L. Mundim;H. Nogima;W. L. Prado Da Silva;A. Santoro;L. Soares Jorge;A. Sznajder;E. J. Tonelli Manganote;A. Vilela Pereira;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;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;Y. Guo;W. Li;S. Liu;Y. Mao;S. J. Qian;H. Teng;D. Wang;L. Zhang;W. Zou;C. Avila;C. A. Carrillo Montoya;J. P. Gomez;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;D. Mekterovic;S. Morovic;L. Tikvica;A. Attikis;G. Mavromanolakis;J. Mousa;C. Nicolaou;F. Ptochos;P. A. Razis;M. Finger;M. Finger;Y. Assran;S. Elgammal;A. Ellithi Kamel;A. M. Kuotb Awad;M. A. Mahmoud;A. Radi;M. Kadastik;M. Müntel;M. Murumaa;M. Raidal;L. Rebane;A. Tiko;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;A. Korpela;T. Tuuva;M. Besancon;S. Choudhury;F. Couderc;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;M. Titov;S. Baffioni;F. Beaudette;L. Benhabib;L. Bianchini;M. Bluj;P. Busson;C. Charlot;N. Daci;T. Dahms;M. Dalchenko;L. Dobrzynski;A. Florent;R. Granier de Cassagnac;M. Haguenauer;P. Miné;C. Mironov;I. N. Naranjo;M. Nguyen;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;E. C. Chabert;C. Collard;E. Conte;F. Drouhin;J.
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