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Measurement of the azimuthal ordering of charged hadrons with the ATLAS detector
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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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.
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Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-182990DOI: 10.1103/PhysRevD.86.052005ISI: 000308737600001OAI: oai:DiVA.org:uu-182990DiVA: diva2:561618
Note

ATLAS Collaboration, for complete list of authors see http://dx.doi.org/10.1103/PhysRevD.86.052005

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

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Brenner, RichardBuszello, Claus P.Ekelöf, TordEllert, MattiasFerrari, ArnaudIsaksson, Charlie

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