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dc.contributor.authorKuday, Sinan
dc.contributor.authorYıldız (Duran), Hatice
dc.contributor.authorÇiftçi, Abbas Kenan
dc.contributor.authorÇiftçi, Rena
dc.contributor.authorÇakır, Orhan
dc.date.accessioned2020-03-16T14:56:59Z
dc.date.available2020-03-16T14:56:59Z
dc.date.issued2012
dc.identifier.other014907tr_TR
dc.identifier.urihttps://doi.org/10.1103/PhysRevC.86.014907tr_TR
dc.identifier.urihttp://hdl.handle.net/20.500.12575/70658
dc.description.abstractDifferential measurements of charged particle azimuthal anisotropy are presented for lead-lead collisions at √sNN = 2.76 TeV with the ATLAS detector at the LHC, based on an integrated luminosity of approximately 8 μb− 1. This anisotropy is characterized via a Fourier expansion of the distribution of charged particles in azimuthal angle relative to the reaction plane, with the coefficients vn denoting the magnitude of the anisotropy. Significant v2–v6 values are obtained as a function of transverse momentum (0.5 < pT < 20 GeV), pseudorapidity (|η| < 2.5), and centrality using an event plane method. The vn values for n ≥ 3 are found to vary weakly with both η and centrality, and their pT dependencies are found to follow an approximate scaling relation, v1/n n (pT) ∝ v1/2 2 (pT), except in the top 5% most central collisions. A Fourier analysis of the charged particle pair distribution in relative azimuthal angle (Δϕ = ϕa − ϕb) is performed to extract the coefficients vn, n = (cos nΔϕ). For pairs of charged particles with a large pseudorapidity gap (|Δη = ηa − ηb| > 2) and one particle with pT < 3 GeV, the v2,2–v6,6 values are found to factorize as vn, n(pa T, pb T) ≈ vn(pa T)vn(pb T) in central and midcentral events. Such factorization suggests that these values of v2,2–v6,6 are primarily attributable to the response of the created matter to the fluctuations in the geometry of the initial state. A detailed study shows that the v1,1(pa T, pb T) data are consistent with the combined contributions from a rapidity-even v1 and global momentum conservation.A two-component fit is used to extract the v1 contribution. The extracted v1 isobserved to cross zero at pT ≈ 1.0 GeV, reaches a maximum at 4–5 GeV with a value comparable to that for v3, and decreases at higher pT. © 2012 CERN, for the ATLAS Collaboration.tr_TR
dc.language.isoentr_TR
dc.relation.isversionof10.1103/PhysRevC.86.014907tr_TR
dc.titleMeasurement of the azimuthal anisotropy for charged particle production in √sN N = 2.76 TeV lead-lead collisions with the ATLAS detectortr_TR
dc.typeArticletr_TR
dc.relation.journalPhysical Review C - Nuclear Physicstr_TR
dc.contributor.departmentFen Fakültesitr_TR
dc.identifier.volume86tr_TR
dc.identifier.issue1tr_TR
dc.identifier.startpage014907-1tr_TR
dc.identifier.endpage014907-41tr_TR
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıtr_TR
dc.identifier.issn/e-issn0556-2813
dc.identifier.issn/e-issn1089-490X
dc.description.indexwos
dc.description.indexScopus


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