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Study of ordered hadron chains with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0001-6945-1916
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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Number of Authors: 28722017 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 96, no 9, article id 092008Article in journal (Refereed) Published
Abstract [en]

The analysis of the momentum difference between charged hadrons in high-energy proton-proton collisions is performed in order to study coherent particle production. The observed correlation pattern agrees with a model of a helical QCD string fragmenting into a chain of ground-state hadrons. A threshold momentum difference in the production of adjacent pairs of charged hadrons is observed, in agreement with model predictions. The presence of low-mass hadron chains also explains the emergence of charge-combination-dependent two-particle correlations commonly attributed to Bose-Einstein interference. The data sample consists of 190 mu b(-1) of minimum-bias events collected with proton-proton collisions at a center-of-mass energy root s = 7 TeV in the early low-luminosity data taking with the ATLAS detector at the LHC.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2017. Vol. 96, no 9, article id 092008
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Physical Sciences
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URN: urn:nbn:se:kth:diva-220888DOI: 10.1103/PhysRevD.96.092008ISI: 000416430900002Scopus ID: 2-s2.0-85037715508OAI: oai:DiVA.org:kth-220888DiVA, id: diva2:1171809
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QC 20180108

Available from: 2018-01-08 Created: 2018-01-08 Last updated: 2018-01-08Bibliographically approved

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Kastanas, Konstatinos A.Lund-Jensen, BengtRipellino, GiuliaSidebo, P. EdvinStrandberg, Jonas

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