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Two-particle Bose–Einstein correlations in pp collisions at √s = 0.9 and 7 TeV measured with the ATLAS detector

Author(s)
Taylor, Frank E
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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 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 μb[superscript −1], 190 μb[superscript −1] and 12.4 nb[superscript −1] 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 parameter 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.
Date issued
2015-10
URI
http://hdl.handle.net/1721.1/106621
Department
Massachusetts Institute of Technology. Department of Physics
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
ATLAS Collaboration et al. “Two-Particle Bose–Einstein Correlations in Pp Collisions at √s = 0.9 and 7 TeV Measured with the ATLAS Detector.” The European Physical Journal C 75.10 (2015): n. pag. © 2015 CERN for the benefit of the ATLAS collaboration
Version: Final published version
ISSN
1434-6044
1434-6052

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