Title
Measurement of the underlying event activity in pp collisions at <tex>$\sqrt{s}=0.9$</tex> and 7 TeV with the novel jet-area/median approach Measurement of the underlying event activity in pp collisions at <tex>$\sqrt{s}=0.9$</tex> and 7 TeV with the novel jet-area/median approach
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
Journal of high energy physics. - Bristol
Volume/pages
(2012) :8 , p. 1-34
ISSN
1126-6708
1029-8479
Article Reference
130
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The first measurement of the charged component of the underlying event using the novel "jet-area/median" approach is presented for proton-proton collisions at centre-of-mass energies of 0.9 and 7TeV. The data were recorded in 2010 with the CMS experiment at the LHC. A new observable, sensitive to soft particle production, is introduced and investigated inclusively and as a function of the event scale defined by the transverse momentum of the leading jet. Various phenomenological models are compared to data, with and without corrections for detector effects. None of the examined models describe the data satisfactorily.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/940d59/3617.pdf
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