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Measurement of charged particle multiplicities in pp collisions at t √s =7 TeV in the forward region
Abellan Beteta, Carlos; Calvo Gomez, M.; Camboni, Alessandro; Comerma Montells, Albert; Domingo Bonal, F.; Garrido Beltrán, Lluís; Gascon, D.; Grabalosa Gándara, Marc; Graciani Díaz, Ricardo; Graugés Pous, Eugeni; López Asamar, E.; Musy, Marco; Perez-Calero Yzquierdo, A.; Picatoste Olloqui, Eduardo; Pie Valls, B. (Blai); Potterat, Cédric; Puig Navarro, A.; Rosello, M.; Ruiz, Hugo (Ruiz Pérez); Vazquez Gomez, R.; Vilasis-Cardona, X.; LHCb Collaboration
Universitat de Barcelona
Charged particle production in proton-proton collisions is studied with the LHCb detector at a centre-of-mass energy of √s = 7 TeV in different intervals of pseudorapidity η. Charged particles are reconstructed close to the interaction region in the vertex detector, which provides high reconstruction efficiency in the η ranges −2.5 <η< −2.0 and 2.0 <η< 4.5. The data were taken with a minimum bias trigger, only requiring one or more reconstructed tracks in the vertex detector. By selecting an event sample with at least one track with a transverse momentum greater than 1 GeV/c a hard QCD subsample is investigated. Several event generators are compared with the data; none are able to describe fully the multiplicity distributions or the charged particle density distribution as a function of η. In general, the models underestimate charged particle production.
Teoria quàntica de camps
Gravitació
Relativitat (Física)
Teoria quàntica
Hadrons
Quantum field theory
Gravitation
Relativity (Physics)
Quantum theory
Hadrons
CC BY, (c) LHCb collaboration, 2012
http://creativecommons.org/licenses/by/3.0
Artículo
info:eu-repo/semantics/publishedVersion
Società Italiana di Fisica & Springer Verlag
         

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Abellan Beteta, Carlos; Calvo Gomez, M.; Camboni, Alessandro; Comerma Montells, Albert; Domingo Bonal, F.; Garrido Beltrán, Lluís; Gascon, D.; Grabalosa Gándara, Marc; Graciani Díaz, Ricardo; Graugés Pous, Eugeni; López Asamar, E.; Musy, Marco; Perez-Calero Yzquierdo, A.; Picatoste Olloqui, Eduardo; Pie Valls, B. (Blai); Potterat, Cédric; Puig Navarro, A.; Rosello, M.; Ruiz, Hugo (Ruiz Pérez); Vazquez Gomez, R.; Vilasis-Cardona, X.; LHCb Collaboration
Abellan Beteta, Carlos; Calvo Gomez, M.; Camboni, Alessandro; Comerma Montells, Albert; Domingo Bonal, F.; Garrido Beltrán, Lluís; Gascon, D.; Grabalosa Gándara, Marc; Graciani Díaz, Ricardo; Graugés Pous, Eugeni; López Asamar, E.; Musy, Marco; Perez-Calero Yzquierdo, A.; Picatoste Olloqui, Eduardo; Pie Valls, B. (Blai); Potterat, Cédric; Puig Navarro, A.; Rosello, M.; Ruiz, Hugo (Ruiz Pérez); Vazquez Gomez, R.; Vilasis-Cardona, X.; LHCb Collaboration
Abellan Beteta, Carlos; Calvo Gomez, M.; Camboni, Alessandro; Comerma Montells, Albert; Domingo Bonal, F.; Garrido Beltrán, Lluís; Gascon, D.; Grabalosa Gándara, Marc; Graciani Díaz, Ricardo; Graugés Pous, Eugeni; López Asamar, E.; Musy, Marco; Perez-Calero Yzquierdo, A.; Picatoste Olloqui, Eduardo; Pie Valls, B. (Blai); Potterat, Cédric; Puig Navarro, A.; Rosello, M.; Ruiz, Hugo (Ruiz Pérez); Vazquez Gomez, R.; Vilasis-Cardona, X.; LHCb Collaboration
Abellan Beteta, Carlos; Calvo Gómez, M.; Camboni, Alessandro; Comerma Montells, Albert; Bonal, F.; Garrido Beltrán, Lluís; Gascon, D.; Grabalosa Gándara, Marc; Graciani Díaz, Ricardo; Graugés Pous, Eugeni; Lopez Asamar, E.; Pérez-Calero Yzquierdo, Antonio; Pie Valls, B. (Blai); Potterat, Cédric; Puig Navarro, A.; Rosello, M.; Ruiz, Hugo (Ruiz Pérez); Vázquez Gómez, R.; Vilasis-Cardona, X.; LHCb Collaboration
Abellan Beteta, Carlos; Calvo Gómez, M.; Camboni, Alessandro; Comerma Montells, Albert; Bonal, F.; Garrido Beltrán, Lluís; Gascon, D.; Grabalosa Gándara, Marc; Graciani Díaz, Ricardo; Graugés Pous, Eugeni; Lopez Asamar, E.; Pérez-Calero Yzquierdo, Antonio; Pie Valls, B. (Blai); Potterat, Cédric; Puig Navarro, A.; Rosello, M.; Ruiz, Hugo (Ruiz Pérez); Vázquez Gómez, R.; Vilasis-Cardona, X.; LHCb Collaboration