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19 April 2024 |
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Is hexagonal flow v_6 just a superposition of elliptic v_2 and triangular v_3 flows? | | 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
; | | Date: |
4 Nov 2013 | | Abstract: | Partial contributions of elliptic v_2 and triangular v_3 flows to the
hexagonal v_6 flow are studied within the HYDJET++ model for Pb+Pb collisions
at sqrt{s}=2.76 ATeV. Scaling of the ratio v_6^{1/6}{Psi_2} / v_2^{1/2}{Psi_2}
in the elliptic flow plane, Psi_2, is predicted in the range 1 GeV/c < p_T < 4
GeV/c for semi-central and semi-peripheral collisions. Jets increase this ratio
by about 10% and also cause its rise at p_T > 3.5 GeV/c. The part of v_6 coming
from v_2 is instantly increasing as the reaction becomes more peripheral,
whereas the contribution of v_3 to v_6 drops. This behavior explains the
experimentally observed increase of correlations between second and sixth
harmonics and decrease of correlations between third and sixth harmonics with
rising impact parameter $b$. Our study favors the idea that basic features of
the hexagonal flow can be understood in terms of interplay of elliptic and
triangular flows. | | Source: | arXiv, 1311.0747 | | Services: | Forum | Review | PDF | Favorites | |
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