Measurement of the azimuthal anisotropy of charged particles produced in √s.sub.NN./sub. = 5.02 TeV Pb+Pb collisions with the ATLAS detector

0519475 - FZÚ 2020 RIV DE eng J - Journal Article
Aaboud, M. - Aad, G. - Abbott, B. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2916 authors
Measurement of the azimuthal anisotropy of charged particles produced in √s_NN = 5.02 TeV Pb+Pb collisions with the ATLAS detector.
European Physical Journal C. Roč. 78, č. 12 (2018), s. 1-35, č. článku 997. ISSN 1434-6044. E-ISSN 1434-6052
R&D Projects: GA MŠMT LM2015058
Institutional support: RVO:68378271
Keywords : ATLAS * CERN LHC Coll * charged particle * flow * transverse momentum * initial state * fluctuation * trigger
OECD category: Particles and field physics
Impact factor: 4.843, year: 2018
Method of publishing: Open access

Measurements of the azimuthal anisotropy in lead–lead collisions at √sNN = 5.02 TeV are presented using a data sample corresponding to 0.49 nb−1 integrated luminosity collected by the ATLAS experiment at the LHC in 2015. The recorded minimum-bias sample is enhanced by triggers for “ultra-central” collisions, providing an opportunity to perform detailed study of flow harmonics in the regime where the initial state is dominated by fluctuations. The anisotropy of the charged-particle azimuthal angle distributions is characterized by the Fourier coefficients, v2 – v7 , which are measured using the two-particle correlation, scalar-product and event-plane methods. The goal of the paper is to provide measurements of the differential as well as integrated flow harmonics vn over wide ranges of the transverse momentum, 0.5 <pT< 60 GeV, the pseudorapidity, |η|< 2.5, and the collision centrality 0–80%.
Permanent Link: http://hdl.handle.net/11104/0304454