Abstract:

Fermilab E989 is a new initiative to measure the Muon Anomalous Magnetic Moment (g-2) to better than one part in 10 million, a factor of 4 improvement over BNL E821. The technique is to measure the muon spin precession in a storage ring at 3.1 GeV/c (the "magic" momentum). The improvements will come from a new Fermilab accelerator complex, state-of-the art detector technologies, and better optimization of the storage ring magnetic field. E989 will reuse as much as possible the equipment from BNL E821. The 3 50' diameter superconducting cryostats were successfully transported from BNL to Fermilab in late July 2013. I will describe the E989 initiative, focusing on the spectacular 5 week journey of the 50' g-2 superconducting cryostat. The reassembly of the main magnet is proceeding rapidly. It is scheduled for powering up in mid 2015.