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arXiv · 1411.4487

Angular dihadron correlations as interplay of elliptic and triangular flows

G. Eyyubova·V. L. Korotkikh·I. P. Lokhtin·S. V. Petrushanko·A. M. Snigirev·L. V. Bravina·E. E. Zabrodin
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Abstract

The hybrid model HYDJET++, which combines soft and hard components, is employed for the analysis of dihadron angular correlations measured in PbPb collisions at center-of-mass energy sqrt(s_NN) = 2.76 TeV. The model allows for study both individual contributions and mutual influence of lower flow harmonics, v_2 and v_3, on higher harmonics and dihadron angular correlations. It is shown that the typical structure called ridge in dihadron angular correlations in a broad pseudorapidity range could appear just as interplay of v_2 and v_3. Central, semi-central and semi-peripheral collisions were investigated. Comparison of model results with the experimental data on dihadron angular correlations is presented for different centralities and transverse momenta p_T.

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G. Eyyubova, V. L. Korotkikh, I. P. Lokhtin, S. V. Petrushanko, A. M. Snigirev, L. V. Bravina, E. E. Zabrodin. 2015-06-11. Angular dihadron correlations as interplay of elliptic and triangular flows. https://doi.org/10.1103/physrevc.91.064907

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