EM field in intermediate-energy central HIC
GIF animations of the spacetime evolution of the electromagnetic field produced in central collisions of gold ions at intermediate energies \( \sqrt{s_{\rm NN}} = O(3-10\;{\rm GeV}) \). For more details, see the full paper 2402.17136.

Note that the beam direction is taken along the \( z \)-axis. Note also that \( {\mathcal F} := E^2 - B^2 \) is the electromagnetic Lorentz invariant and the magnetic field is almost vanishing at the central events and so \( {\mathcal F} \approx E^2 \).
\( \sqrt{s_{\rm NN}} = 2.4 \;{\rm GeV} \)
3D view2D slice at \( x=0\;{\rm fm} \)2D slice at \( z=0\;{\rm fm} \)
\( \sqrt{s_{\rm NN}} = 3.0 \;{\rm GeV} \)
3D view2D slice at \( x=0\;{\rm fm} \)2D slice at \( z=0\;{\rm fm} \)
\( \sqrt{s_{\rm NN}} = 3.9 \;{\rm GeV} \)
3D view2D slice at \( x=0\;{\rm fm} \)2D slice at \( z=0\;{\rm fm} \)
\( \sqrt{s_{\rm NN}} = 5.2 \;{\rm GeV} \)
3D view2D slice at \( x=0\;{\rm fm} \)2D slice at \( z=0\;{\rm fm} \)
\( \sqrt{s_{\rm NN}} = 7.2 \;{\rm GeV} \)
3D view2D slice at \( x=0\;{\rm fm} \)2D slice at \( z=0\;{\rm fm} \)