Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/15635
Title: Azimuthal anisotropy of charged particles with transverse momentum up to 100 GeV/c in PbPb collisions at s<inf>NN</inf>=5.02 TeV
Authors: Tumasyan, A
Adam, W
Asilar, E
Bergauer, T
Brandstetter, J
Brondolin, E
Dragicevic, M
Erö, J
Flechl, M
Friedl, M
Frühwirth, R
Ghete, VM
Hartl, C
Hörmann, N
Hrubec, J
Jeitler, M
König, A
Krätschmer, I
Liko, D
Matsushita, T
Mikulec, I
Rabady, D
Rad, N
Rahbaran, B
Rohringer, H
Schieck, J
Strauss, J
Waltenberger, W
Wulz, CE
Dvornikov, O
Makarenko, V
Mossolov, V
Suarez Gonzalez, J
Zykunov, V
Shumeiko, N
Alderweireldt, S
De Wolf, EA
Janssen, X
Lauwers, J
Van De Klundert, M
Van Haevermaet, H
Van Mechelen, P
Van Remortel, N
Van Spilbeeck, A
Abu Zeid, S
Blekman, F
D'Hondt, J
Daci, N
De Bruyn, I
Deroover, K
Lowette, S
Moortgat, S
Moreels, L
Olbrechts, A
Python, Q
Skovpen, K
Tavernier, S
Van Doninck, W
Van Mulders, P
Van Parijs, I
Brun, H
Clerbaux, B
De Lentdecker, G
Delannoy, H
Fasanella, G
Favart, L
Goldouzian, R
Grebenyuk, A
Karapostoli, G
Lenzi, T
Léonard, A
Luetic, J
Maerschalk, T
Marinov, A
Randle-conde, A
Seva, T
Vander Velde, C
Vanlaer, P
Vannerom, D
Yonamine, R
Zenoni, F
Zhang, F
Cimmino, A
Cornelis, T
Dobur, D
Fagot, A
Gul, M
Khvastunov, I
Poyraz, D
Salva, S
Schöfbeck, R
Tytgat, M
Van Driessche, W
Yazgan, E
Zaganidis, N
Bakhshiansohi, H
Beluffi, C
Citation: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2018, 776 pp. 195 - 216
Abstract: © 2017 The Author The Fourier coefficients v 2 and v 3 characterizing the anisotropy of the azimuthal distribution of charged particles produced in PbPb collisions at s NN =5.02 TeV are measured with data collected by the CMS experiment. The measurements cover a broad transverse momentum range, 1 < p T < 100 GeV/c. The analysis focuses on the p T > 10 GeV/c range, where anisotropic azimuthal distributions should reflect the path-length dependence of parton energy loss in the created medium. Results are presented in several bins of PbPb collision centrality, spanning the 60% most central events. The v 2 coefficient is measured with the scalar product and the multiparticle cumulant methods, which have different sensitivities to initial-state fluctuations. The values from both methods remain positive up to p T ∼60–80 GeV/c, in all examined centrality classes. The v 3 coefficient, only measured with the scalar product method, tends to zero for p T ≳20 GeV/c. Comparisons between theoretical calculations and data provide new constraints on the path-length dependence of parton energy loss in heavy ion collisions and highlight the importance of the initial-state fluctuations.
URI: http://bura.brunel.ac.uk/handle/2438/15635
DOI: http://dx.doi.org/10.1016/j.physletb.2017.11.041
ISSN: 0370-2693
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

Files in This Item:
File Description SizeFormat 
Fulltext.pdf934.71 kBAdobe PDFView/Open


Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.