We investigate the influence of the intense electromagnetic fields generated in p+Au collisions at top RHIC energy on the collective anisotropies of charged mesons, performing simulations with the Parton-Hadron-String Dynamics (PHSD) transport approach. We show that the electric field along the impact parameter axis and the magnetic field orthogonal to the reaction plane are comparable in magnitude, with a maximum strength of. We found that those fields affect the directed flow of pions and kaons: a splitting in the rapidity dependence of of particles with opposite charge is generated in the Au-going side and is mainly driven by the huge component. The effect is stronger for the strange mesons and for larger impact parameters. Moreover, we demonstrate that the main contribution to the electromagnetically-induced splitting comes from the deconfined phase.
Collectivity and Electromagnetic Fields in Proton-Induced Collisions
Oliva L.;
2020-01-01
Abstract
We investigate the influence of the intense electromagnetic fields generated in p+Au collisions at top RHIC energy on the collective anisotropies of charged mesons, performing simulations with the Parton-Hadron-String Dynamics (PHSD) transport approach. We show that the electric field along the impact parameter axis and the magnetic field orthogonal to the reaction plane are comparable in magnitude, with a maximum strength of. We found that those fields affect the directed flow of pions and kaons: a splitting in the rapidity dependence of of particles with opposite charge is generated in the Au-going side and is mainly driven by the huge component. The effect is stronger for the strange mesons and for larger impact parameters. Moreover, we demonstrate that the main contribution to the electromagnetically-induced splitting comes from the deconfined phase.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
