Session 2B: Maximizing the Uniformity of the Muon G-2 Magnet through Automated Coil Shimming
Session Number
Session 2B: 3rd Presentation
Advisor(s)
Brendan Kiburg, Fermilab
Location
Room A149
Start Date
28-4-2017 10:00 AM
End Date
28-4-2017 11:15 AM
Abstract
The value g in particle physics represents how a particle couples to a magnetic field. Paul Dirac predicted the g-value of a muon to be exactly two without quantum effects. However, quantum mechanics does exist in our universe and affects the g-value of the muon. With the combined effects of quantum electrodynamics, quantum chromodynamics, and electroweak interactions, theorists predicted that the g of a muon should be slightly greater than two, but a study at Brookhaven National Laboratory (BNL) recorded the g value of a muon to be 3.3 to 3.6 standard deviations away from this theoretical g. This discrepancy causes concern as it is statistically unlikely, perhaps hinting at a new phenomena or interaction occurring. In order to further understand this, the original magnet form BNL is going to be used but needs to be more uniform, so a shimming system is going to be added to the superconducting magnets in place. The system will involve two parts: shimming coils and a monitoring system. With a monitoring system in place, the system will not only set the magnetic field to the desired value but also make sure that it stays there.
Session 2B: Maximizing the Uniformity of the Muon G-2 Magnet through Automated Coil Shimming
Room A149
The value g in particle physics represents how a particle couples to a magnetic field. Paul Dirac predicted the g-value of a muon to be exactly two without quantum effects. However, quantum mechanics does exist in our universe and affects the g-value of the muon. With the combined effects of quantum electrodynamics, quantum chromodynamics, and electroweak interactions, theorists predicted that the g of a muon should be slightly greater than two, but a study at Brookhaven National Laboratory (BNL) recorded the g value of a muon to be 3.3 to 3.6 standard deviations away from this theoretical g. This discrepancy causes concern as it is statistically unlikely, perhaps hinting at a new phenomena or interaction occurring. In order to further understand this, the original magnet form BNL is going to be used but needs to be more uniform, so a shimming system is going to be added to the superconducting magnets in place. The system will involve two parts: shimming coils and a monitoring system. With a monitoring system in place, the system will not only set the magnetic field to the desired value but also make sure that it stays there.