Higher harmonics of azimuthal anisotropy in relativistic heavy-ion collisions in HYDJET++ model

L. V. Bravina; B. H. Brusheim Johansson; G. Kh. Eyyubova; V. L. Korotkikh; I. P. Lokhtin; L. V. Malinina; S. V. Petrushanko; A. M. Snigirev; E. E. Zabrodin

doi:10.1140/epjc/s10052-014-2807-5

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2024 Impact factor 4.8

Particles and Fields

Open Access

Eur. Phys. J. C (2014) 74: 2807
https://doi.org/10.1140/epjc/s10052-014-2807-5

Regular Article - Theoretical Physics

Higher harmonics of azimuthal anisotropy in relativistic heavy-ion collisions in HYDJET++ model

L. V. Bravina², B. H. Brusheim Johansson²^,3, G. Kh. Eyyubova¹^,4, V. L. Korotkikh¹, I. P. Lokhtin¹^*, L. V. Malinina¹, S. V. Petrushanko¹, A. M. Snigirev¹ and E. E. Zabrodin¹^,2

¹ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia
² The Department of Physics, University of Oslo, Oslo, Norway
³ Oslo and Akershus University College for Applied Sciences, Oslo, Norway
⁴ Czech Technical University in Prague, FNSPE, Prague, Czech Republic

^* e-mail: igor@lav01.sinp.msu.ru

Received: 3 December 2013
Accepted: 4 March 2014
Published online: 15 March 2014

Abstract

The LHC data on azimuthal anisotropy harmonics from PbPb collisions at center-of-mass energy 2.76 TeV per nucleon pair are analyzed and interpreted in the framework of the HYDJET++ model. The cross-talk of elliptic $$v_2$$ and triangular $$v_3$$ flow in the model generates both even and odd harmonics of higher order. Comparison with the experimental data shows that this mechanism is able to reproduce the $p_\mathrm{T}$ and centrality dependencies of quadrangular flow $$v_4$$ , and also the basic trends for pentagonal $$v_5$$ and hexagonal $$v_6$$ flows.