Underlying Event Characteristics and their Dependence on Jet Size of Charged-Particle Jet Events in pp Collisions at √(s̅)=7  TeV with the ATLAS Detector

Simple item page
dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdel Khalek, S.en_US
dc.contributor.authorAbdelalim, A. A.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAbi, B.en_US
dc.contributor.authorAhsan, Mahsanaen_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorWong, Wei-Chengen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthor|Ahsan, Mahsanaen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.contributor.utdAuthorWong, Wei-Chengen_US
dc.date.accessioned2014-02-26T22:50:11Z
dc.date.available2014-02-26T22:50:11Z
dc.date.created2012-10-09en_US
dc.date.issued2012-10-09en_US
dc.description.abstractDistributions sensitive to the underlying event are studied in events containing one or more chargedparticle jets produced in pp collisions at √s̅ = 7 TeV with the ATLAS detector at the Large Hadron Collider (LHC). These measurements reflect 800 μb⁻¹ of data taken during 2010. Jets are reconstructed using the anti-k_t algorithm with radius parameter R varying between 0.2 and 1.0. Distributions of the charged-particle multiplicity, the scalar sum of the transverse momentum of charged particles, and the average charged-particle p_T are measured as functions of p_T^{jet} in regions transverse to and opposite the leading jet for 4 GeV < p_T^{jet} < 100 GeV. In addition, the R dependence of the mean values of these observables is studied. In the transverse region, both the multiplicity and the scalar sum of the transverse momentum at fixed p_T^{jet} vary significantly with R, while the average charged- particle transverse momentum has a minimal dependence on R. Predictions from several Monte Carlo tunes have been compared to the data; the predictions from Pythia 6, based on tunes that have been determined using LHC data, show reasonable agreement with the data, including the dependence on R. Comparisons with other generators indicate that additional tuning of soft-QCD parameters is necessary for these generators. The measurements presented here provide a testing ground for further development of the Monte Carlo models.en_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, S. Abdel Thalek, et al. 2012. "Underlying event characteristics and their dependence on jet size of charged-particle jet events in pp collisions at √(s̅)=7  TeV with the ATLAS detector." Physical Review D 86(7), doi:10.1103/PhysRevD.86.072004en_US
dc.identifier.issn1550-7998en_US
dc.identifier.issue7en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3097
dc.identifier.volume86en_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.86.072004
dc.rightsCC BY 3.0 (Attribution)en_US
dc.rights© 2012 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.sourcePhysical Review D
dc.subjectJets (Nuclear physics)en_US
dc.titleUnderlying Event Characteristics and their Dependence on Jet Size of Charged-Particle Jet Events in pp Collisions at √(s̅)=7  TeV with the ATLAS Detectoren_US
dc.typeTexten_US
dc.type.genreArticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
NSM-FR-Izen-310488.98.pdf
Size:
1.65 MB
Format:
Adobe Portable Document Format
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
American Physical Society.pdf
Size:
54.95 KB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Izen, Joseph M.
Lou, Xinchou