Generation of higher flow harmonics in Pb+Pb collisions at LHC in HYDJET++ model

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

doi:10.1051/epjconf/20159505004

All issues

Volume 95 (2015)

EPJ Web of Conferences, 95 (2015) 05004

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 95, 2015 3^rd International Conference on New Frontiers in Physics


Article Number		05004
Number of page(s)		8
Section		Poster session
DOI		https://doi.org/10.1051/epjconf/20159505004
Published online		29 May 2015

EPJ Web of Conferences 95, 05004 (2015)
https://doi.org/10.1051/epjconf/20159505004

Generation of higher flow harmonics in Pb+Pb collisions at LHC in HYDJET++ model

B. H. Brusheim Johansson¹^a, L. V. Bravina¹^b, G. Kh. Eyyubova²^c, V. L. Khoroktikh²^d, I. P. Lokhtin²^e, L. V. Malinina²^f, S. P. Petrushanko²^g, A. M. Snigirev²^h and E. E. Zabrodin¹^,2ⁱ

¹ Department of Physics, University of Oslo, Pb. 1048 Blindern, N-0316 Oslo, Norway
² Skobeltsyn Institute of Nuclear Physics Lomonosov Moscow State University, RU-119991 Moscow, Russia

^a e-mail: bhjohan@uio.no
^b e-mail: larissa.bravina@fys.uio.no
^c e-mail: eyyubova@mail.cern.ch
^d e-mail: vlk@lav1.npi.msu.su
^e e-mail: Lokhtin@cern.ch
^f e-mail: malinina@lav01.sinp.msu.ru
^g e-mail: petrushanko@lav01.sinp.msu.ru
^h e-mail: snigirev@lav.npi.msu.su
ⁱ e-mail: Zabrodin@fys.uio.no

Published online: 29 May 2015

Abstract

The influence of elliptic and triangular flow on higher flow harmonics is studied within the HYDJET++ model, which merges parametrized hydro with jet quenching. Even harmonics can be generated by elliptic flow only, while odd harmonics need nonzero triangular component. A hydrodynamical model predicts a scaling of υ₄/υ₂² ratio with p_T, while jets force a rise of the high p_T tail of the ratio. Hexagonal flow appears to be an interesting interplay between υ₂ and υ₃. It shows a dominant contribution of υ₃ in central events and υ₂ at more peripheral collisions. Comparison with ALICE, ATLAS and CMS experimental data is presented.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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