Lorentz-violating spinor electrodynamics and Penning traps

Aug 28, 2016
26 pages
Published in:
  • Phys.Rev.D 94 (2016) 5, 056008
  • Published: Sep 22, 2016
e-Print:
Report number:
  • IUHET-601

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Abstract: (APS)
The prospects are explored for testing Lorentz- and CPT-violating quantum electrodynamics in experiments with Penning traps. We present the Lagrange density of Lorentz-violating spinor electrodynamics with operators of mass dimensions up to 6, and we discuss some of its properties. The theory is used to derive Lorentz- and CPT-violating perturbative shifts of the energy levels of a particle confined to a Penning trap. Observable signals are discussed for trapped electrons, positrons, protons, and antiprotons. Existing experimental measurements on anomaly frequencies are used to extract new or improved bounds on numerous coefficients for Lorentz and CPT violation, using sidereal variations of observables and comparisons between particles and antiparticles.
Note:
  • 25 pages two-column REVTeX
  • mass: operator
  • CPT: violation
  • Penning trap
  • electromagnetic field
  • spinor
  • quantum electrodynamics
  • energy levels
  • antiparticle
  • positron
  • electron