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arXiv · 2001.01371

Vorticity in low-energy heavy-ion collisions

Xian-Gai Deng·Xu-Guang Huang·Yu-Gang Ma·Song Zhang
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Abstract

We study the kinematic and thermal vorticities in low-energy heavy-ion collisions by using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model. We explore their time evolution and spatial distribution. We find that the initial vorticities have a non-monotonic dependence on the collision energy $\sqrt{s_{\rm NN}}$: as $\sqrt{s_{\rm NN}}$ grows the vorticities first increase steeply and then decrease with the turning point around $\sqrt{s_{\rm NN}}\sim 3-5$ GeV depending on the centrality.

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Xian-Gai Deng, Xu-Guang Huang, Yu-Gang Ma, Song Zhang. 2020-06-30. Vorticity in low-energy heavy-ion collisions. https://doi.org/10.1103/physrevc.101.064908

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