First measurement of the underlying event activity at the LHC with root s=0.9 TeV
Abstract
A measurement of the underlying activity in scattering processes with p (T) scale in the GeV region is performed in proton-proton collisions at root s = 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 |eta|< 2, p (T) > 0.5 GeV/c, and azimuthal direction transverse to that of the leading object.
Autore Pugliese
Tutti gli autori
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SELVAGGI G.;NUZZO S.V.
Titolo volume/Rivista
Non Disponibile
Anno di pubblicazione
2010
ISSN
1434-6044
ISBN
Non Disponibile
Numero di citazioni Wos
40
Ultimo Aggiornamento Citazioni
Non Disponibile
Numero di citazioni Scopus
44
Ultimo Aggiornamento Citazioni
Non Disponibile
Settori ERC
Non Disponibile
Codici ASJC
Non Disponibile
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