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Measurement of the azimuthal ordering of charged hadrons with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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Number of Authors: 3031
2012 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 86, no 5, 052005- p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a study of the possible ordering of charged hadrons in the azimuthal angle relative to the beam axis in high-energy proton-proton collisions at the Large Hadron Collider (LHC). A spectral analysis of correlations between longitudinal and transverse components of the momentum of the charged hadrons, driven by the search for phenomena related to the structure of the QCD field, is performed. Data were recorded with the ATLAS detector at center-of-mass energies of root s = 900 GeV and root s = 7 TeV. The correlations measured in a kinematic region dominated by low-p(T) particles are not well described by conventional models of hadron production. The measured spectra show features consistent with the fragmentation of a QCD string represented by a helixlike ordered gluon chain.

Place, publisher, year, edition, pages
2012. Vol. 86, no 5, 052005- p.
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-103727DOI: 10.1103/PhysRevD.86.052005ISI: 000308737600001Scopus ID: 2-s2.0-84866517159OAI: oai:DiVA.org:kth-103727DiVA: diva2:561537
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note

QC 20121019, Author count 3031

Available from: 2012-10-19 Created: 2012-10-19 Last updated: 2017-12-07Bibliographically approved

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Strandberg, Jonas

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