Title
First measurement of the underlying event activity at the LHC with √ = 0.9 TeV
Date Issued
01 January 2010
Access level
open access
Resource Type
journal article
Author(s)
Khachatryan V.
Sirunyan A.M.
Tumasyan A.
Adam W.
Bergauer T.
Dragicevic M.
Erö J.
Fabjan C.
Friedl M.
Frühwirth R.
Ghete V.M.
Hammer J.
Hänsel S.
Hoch M.
Hörmann N.
Hrubec J.
Jeitler M.
Kasieczka G.
Kiesenhofer W.
Krammer M.
Liko D.
Mikulec I.
Pernicka M.
Rohringer H.
Schöfbeck R.
Strauss J.
Taurok A.
Teischinger F.
Waltenberger W.
Walzel G.
Widl E.
Wulz C.E.
Mossolov V.
Shumeiko N.
Suarez Gonzalez J.
Benucci L.
Ceard L.
de Wolf E.A.
Hashemi M.
Janssen X.
Maes T.
Mucibello L.
Ochesanu S.
Roland B.
Rougny R.
Selvaggi M.
van Haevermaet H.
van Mechelen P.
van Remortel N.
Adler V.
Beauceron S.
Blyweert S.
D'Hondt J.
Devroede O.
Kalogeropoulos A.
Maes J.
Maes M.
Tavernier S.
van Doninck W.
van Mulders P.
Villella I.
Chabert E.C.
Charaf O.
Clerbaux B.
de Lentdecker G.
Dero V.
Gay A.P.R.
Hammad G.H.
Marage P.E.
Vander Velde C.
Vanlaer P.
Wickens J.
Costantini S.
Grunewald M.
Klein B.
Marinov A.
Ryckbosch D.
Thyssen F.
Tytgat M.
Vanelderen L.
Verwilligen P.
Walsh S.
Zaganidis N.
Basegmez S.
Bruno G.
Caudron J.
de Favereau De Jeneret J.
Delaere C.
Demin P.
Favart D.
Giammanco A.
Grégoire G.
Hollar J.
Lemaitre V.
Militaru O.
Ovyn S.
Pagano D.
Pin A.
Piotrzkowski K.
Quertenmont L.
Publisher(s)
Springer New York LLC
Abstract
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.
Start page
555
End page
572
Volume
70
Issue
3
Language
English
OCDE Knowledge area
Física y Astronomía
Scopus EID
2-s2.0-78651432547
Source
European Physical Journal C
ISSN of the container
14346044
Sponsor(s)
Science and Technology Facilities Council - GRIDPP
Science and Technology Facilities Council - PP/E002722/1
Science and Technology Facilities Council - ST/F006748/1
Science and Technology Facilities Council - ST/F007094/1
Science and Technology Facilities Council - ST/G502347/1
Science and Technology Facilities Council - ST/G502412/1
Science and Technology Facilities Council - ST/H000992/1
Science and Technology Facilities Council - ST/I000410/1
Science and Technology Facilities Council - ST/I002200/1
Science and Technology Facilities Council - ST/I002839/1
Science and Technology Facilities Council - ST/I505572/1
Sources of information:
Directorio de Producción Científica
Scopus