Basin-hopping optimisation of a particle beam transfer line with six different energies in it.   #physics #accelerators  Something like this might be required for the 22GeV CEBAF energy upgrade at Jefferson Lab, to join the arcs to the linac where all the beams are in the same pipe.<p><video src='posts/202601/post-20260109-182537-a.mp4' loading='lazy' preload='metadata' controls></video></p>