Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session FD: Electroweak Experiment and Theory
9:00 AM–11:30 AM,
Friday, October 26, 2018
Hilton
Room: Kohala 3
Chair: Dinko Pocanic, University of Virginia
Abstract ID: BAPS.2018.HAW.FD.8
Abstract: FD.00008 : Relativistic Treatment of Frequency Shifts for Spin 1/2 Particles in Electromagnetic Fields.*
10:45 AM–11:00 AM
Presenter:
Lakshya Malhotra
(University of Kentucky)
Authors:
Lakshya Malhotra
(University of Kentucky)
Robert Golub
(North Carolina State Univ)
Eva Krägeloh
(University of Michigan)
Nima Nouri
(Yale University)
Bradley Plaster
(Univ of Kentucky)
We present a relativistic generalization to the problem of calculating frequency shifts for spin-1/2 particles undergoing Larmor precession in electromagnetic fields. Such effects are important in the interpretation of the results from experiments employing Larmor precession techniques. For the case in which these particles are moving in a highly-uniform magnetic field with small non-uniformities and a non-zero electric field, magnetic fields oriented in the transverse direction relative to the primary magnetic field direction can induce frequency shifts in the particles' Larmor spin precession frequencies. In a situation which employs both electric and magnetic fields, there are, in general, two possible sources of transverse magnetic fields in the particle rest frame: gradients in the magnetic field, leading to off-primary-axis transverse field components, and relativistic transformations of electric fields. Considerations of such are then of paramount importance to the interpretation of results from a precision measurement of a Larmor spin precession frequency.
*This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Award Number DE-SC0014622.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.FD.8
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