Reading around this, i learn that something similar was done in 1993: https://cfp.physics.northwestern.edu/documents/Transport.pdf https://cfp.physics.northwes

Reading around this, i learn that something similar was done in 1993: https://cfp.physics.northwestern.edu/documents/Transport.pdf https://cfp.physics.northwestern.edu/documents/Transport.pdf They built a trap, loaded it with electrons as a test, and drove 5000 miles from Martinez, CA (where the magnet was built) to Cambridge, MA. They mention some unexpected trouble after crossing the Rockies - the steadily increasing atmospheric pressure during the descent reduced helium boiloff rate, which reduced helium exhaust flow, and allowed moist air to flow back through the exhaust pipe, resulting in ice buildup. They cleared the blockage, but in doing so, lost the electrons! I believe that they never repeated the trip with antiprotons. But hopefully the CERN delivery crew have learned from the experience, and won't run into similar trouble coming down from the Alps.