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arXiv · 1405.2248

Deformed Flux Tubes Produce Azimuthal Anisotropy in Heavy Ion Collisions

Hans J. Pirner·Klaus Reygers·Boris Z. Kopeliovich
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Abstract

We investigate the azimuthal anisotropy $v_2$ of particle production in nucleus-nucleus collisions in the maximum entropy approach. This necessitates two new phenomenological input parameters $δ$ and $λ_2$ compared with integrated multiplicity distributions. The parameter $δ$ describes the deformation of a flux tube and can be theoretically calculated in a bag model with a bag constant which depends on the density of surrounding flux tubes. The parameter $λ_2$ defines the anisotropy of the particle distribution in momentum space and can be connected to $δ$ via the uncertainty relation. In this framework we compute the anisotropy $v_2$ as a function of centrality, transverse momentum and rapidity in qualitative agreement with LHC data.

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Hans J. Pirner, Klaus Reygers, Boris Z. Kopeliovich. 2015-12-10. Deformed Flux Tubes Produce Azimuthal Anisotropy in Heavy Ion Collisions. https://doi.org/10.1103/physrevc.93.034910

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