Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

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dc.contributor.author Adam, J.
dc.contributor.author Brucken, E. J.
dc.contributor.author Chang, B.
dc.contributor.author Hilden, T. E.
dc.contributor.author Kim, D. J.
dc.contributor.author Kral, J.
dc.contributor.author Mieskolainen, M. M.
dc.contributor.author Orava, R.
dc.contributor.author Rak, J.
dc.contributor.author Räsänen, S. S.
dc.contributor.author Snellman, T. W.
dc.contributor.author Trzaska, W. H.
dc.contributor.author The ALICE collaboration
dc.date.accessioned 2016-03-23T13:07:02Z
dc.date.available 2016-03-23T13:07:02Z
dc.date.issued 2016-02-10
dc.identifier.citation Adam , J , Brucken , E J , Chang , B , Hilden , T E , Kim , D J , Kral , J , Mieskolainen , M M , Orava , R , Rak , J , Räsänen , S S , Snellman , T W , Trzaska , W H & The ALICE Collaboration 2016 , ' Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV ' , Physics Letters B , vol. 753 , pp. 126-139 . https://doi.org/10.1016/j.physletb.2015.12.010
dc.identifier.other PURE: 61275503
dc.identifier.other PURE UUID: 534fc391-1b50-40f8-a501-db7fc96488e7
dc.identifier.other WOS: 000368783600019
dc.identifier.other Scopus: 84949652232
dc.identifier.other ORCID: /0000-0001-8893-7401/work/48397236
dc.identifier.uri http://hdl.handle.net/10138/160998
dc.description.abstract Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 <vertical bar eta vertical bar <4.0) and associated particles in the central range(vertical bar eta vertical bar <1.0) are measured with the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ranges studied in this Letter. The second-order Fourier coefficients for muons in high-multiplicity events are extracted after jet-like correlations from low-multiplicity events have been subtracted. The coefficients are found to have a similar transverse momentum(p(T)) dependence in p-going (p-Pb) and Pb-going (Pb-p) configurations, with the Pb-going coefficients larger by about 16 +/- 6%, rather independent of p(T) within the uncertainties of the measurement. The data are compared with calculations using the AMPT model, which predicts a different p(T) and eta dependence than observed in the data. The results are sensitive to the parent particle v(2) and composition of reconstructed muon tracks, where the contribution from heavy flavour decays is expected to dominate at p(T) > 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V. en
dc.format.extent 14
dc.language.iso eng
dc.relation.ispartof Physics Letters B
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject PROTON-PROTON COLLISIONS
dc.subject PLUS AU COLLISIONS
dc.subject LONG-RANGE
dc.subject ANGULAR-CORRELATIONS
dc.subject MULTIPLICITY DEPENDENCE
dc.subject DIHADRON CORRELATIONS
dc.subject TRANSVERSE-MOMENTUM
dc.subject TRIANGULAR FLOW
dc.subject PPB COLLISIONS
dc.subject ATLAS DETECTOR
dc.subject 114 Physical sciences
dc.title Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV en
dc.type Article
dc.contributor.organization Helsinki Institute of Physics
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1016/j.physletb.2015.12.010
dc.relation.issn 0370-2693
dc.rights.accesslevel openAccess
dc.type.version publishedVersion
dc.identifier.url http://arxiv.org/abs/1506.08032

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