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Article
Report number arXiv:1502.07947 ; CERN-PH-EP-2014-264 ; CERN-PH-EP-2014-264
Title Two-particle Bose--Einstein correlations in pp collisions at s= 0.9 and 7 TeV measured with the ATLAS detector
Related titleTwo-particle Bose-Einstein correlations in pp collisions at s= 0.9 and 7 TeV measured with the ATLAS detector
Author(s) ATLAS Collaboration  Mostrar todos os 2892 autores
Publication 2015-10-01
Imprint 27 Feb 2015
Number of pages 26
Note Published version, 14 pages plus author list + cover pages (27 pages total), 6 figures, 2 tables, all figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2013-01/
In: Eur. Phys. J. C 75 (2015) 466
DOI 10.1140/epjc/s10052-015-3644-x
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords QCD ; particle correlations and fluctuations ; experimental results
Abstract The paper presents studies of Bose--Einstein Correlations (BEC) for pairs of like-sign charged particles measured in the kinematic range pT> 100 MeV and |η|< 2.5 in proton--proton collisions at centre-of-mass energies of 0.9 and 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. The integrated luminosities are approximately 7 μb1, 190 μb1 and 12.4 nb1 for 0.9 TeV, 7 TeV minimum-bias and 7 TeV high-multiplicity data samples, respectively. The multiplicity dependence of the BEC parameters characterizing the correlation strength and the correlation source size are investigated for charged-particle multiplicities of up to 240. A saturation effect in the multiplicity dependence of the correlation source size is observed using the high-multiplicity 7 TeV data sample. The dependence of the BEC parameters on the average transverse momentum of the particle pair is also investigated.
Copyright/License preprint: © 2014-2024 CERN (License: CC-BY-3.0)
publication: © 2015-2024 CERN (License: CC-BY-4.0), sponsored by SCOAP³



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 Record created 2015-02-27, last modified 2024-03-14


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