First measurement of the underlying event activity at the LHC with √ = 0.9 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/12/2010
|
Resumo |
A measurement of the underlying activity in scattering processes with pT scale in the GeV region is performed in proton-proton collisions at √ = 0.9 TeV, using data collected by the CMS experiment at the LHC. Charged particle production is studied with reference to the direction of a leading object, either a charged particle or a set of charged particles forming a jet. Predictions of several QCD-inspired models as implemented in PYTHIA are compared, after full detector simulation, to the data. The models generally predict too little production of charged particles with pseudorapidity {pipe}η{pipe} < 2, pT > 0.5 GeV/c, and azimuthal direction transverse to that of the leading object. © 2010 CERN for benefit of the CMS collaboration. |
Formato |
555-572 |
Identificador |
http://dx.doi.org/10.1140/epjc/s10052-010-1453-9 European Physical Journal C, v. 70, n. 3, p. 555-572, 2010. 1434-6044 1434-6052 http://hdl.handle.net/11449/72062 10.1140/epjc/s10052-010-1453-9 2-s2.0-78651432547 2-s2.0-78651432547.pdf |
Idioma(s) |
eng |
Relação |
European Physical Journal C |
Direitos |
openAccess |
Tipo |
info:eu-repo/semantics/article |