Angular dihadron correlations as interplay of elliptic and triangular flows
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(sNN) = 2.76 TeV. The model allows for study both individual contributions and mutual influence of lower flow harmonics, v2 and v3, 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 v2 and v3. 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 pT.
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