Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/97989
Title: Measurement of charged particle multiplicities in pp collisions at t √s =7 TeV in the forward region
Author: Abellan Beteta, Carlos
Calvo Gómez, 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
Keywords: Teoria quàntica de camps
Gravitació
Relativitat (Física)
Teoria quàntica
Hadrons
Quantum field theory
Gravitation
Relativity (Physics)
Quantum theory
Hadrons
Issue Date: 20-Apr-2012
Publisher: Società Italiana di Fisica & Springer Verlag
Abstract: 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.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1140/epjc/s10052-012-1947-8
It is part of: European Physical Journal C, 2012, vol. 72, num. 4, p. 1947
Related resource: http://dx.doi.org/10.1140/epjc/s10052-012-1947-8
URI: http://hdl.handle.net/2445/97989
ISSN: 1434-6044
Appears in Collections:Articles publicats en revistes (Electrònica)
Articles publicats en revistes (Física de la Matèria Condensada)
Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

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