How much does the hadronic phase contribute to the observed anisotropic flow at the LHC?
1 Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
2 Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands
a e-mail: R.J.M.Snellings@uu.nl
Published online: 22 June 2015
Elliptic flow signals the presence of multiple interactions between the constituents of the created matter in heavy-ion collisions. This includes possible contributions from the different phases, including the hadronic phase. In these proceedings I will first show that the energy dependence of elliptic flow, based on recent ALICE and STAR beam energy scan measurements, can largely be understood in terms of a boosted thermal system. In addition, a detailed comparison between the identified particle elliptic flow measured by the ALICE collaboration and viscous hydrodynamical model calculations with and without a hadronic afterburner is performed to constrain the possible effects of individual hadron-hadron re-interaction cross-sections.
© Owned by the authors, published by EDP Sciences, 2015
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