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DOE OSTI · 2563580

Vortex rings in event-by-event relativistic heavy-ion collisions

Chinellato, David Dobrigkeit·Lisa, Michael Annan·Serenone, Willian Matioli·Shen, Chun·Takahashi, Jun·Torrieri, Giorgio
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Abstract

We present event-by-event simulations for central asymmetric light+heavy and Au +Au collisions to investigate the formation and evolution of vortex-ring structures in the longitudinal flow velocity profile. The production-plane polarization of Λ hyperons, defined with respect to the Λ momentum and the beam, can track the “vortex-ring” feature in the event, a characteristic vortical structure generated by longitudinal flow gradients. We make comprehensive model predictions for the rapidity-dependent vortex-ring observables for different collision system sizes at √s NN = 200 and 72 GeV. Furthermore, our predictions at the latter energy can be explored in the future LHCb fixed-target experiment at the Large Hadron Collider.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSCollective flowParticle correlations & fluctuationsQuark-gluon plasma

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Chinellato, David Dobrigkeit, Lisa, Michael Annan, Serenone, Willian Matioli, Shen, Chun, Takahashi, Jun, Torrieri, Giorgio. 2024-11-15. Vortex rings in event-by-event relativistic heavy-ion collisions. https://doi.org/10.1103/physrevc.110.054908

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