European Physical Journal C: Particles and Fields (Feb 2020)

Statistical sensitivity estimates for oscillating electric dipole moment measurements in storage rings

  • J. Pretz,
  • S. P. Chang,
  • V. Hejny,
  • S. Karanth,
  • S. Park,
  • Y. Semertzidis,
  • E. Stephenson,
  • H. Ströher

DOI
https://doi.org/10.1140/epjc/s10052-020-7664-9
Journal volume & issue
Vol. 80, no. 2
pp. 1 – 8

Abstract

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Abstract In this paper analytical expressions are derived to describe the spin motion of a particle in magnetic and electric fields in the presence of an axion field causing an oscillating electric dipole moment (EDM). These equations are used to estimate statistical sensitivities for axion searches at storage rings. The estimates obtained from the analytic expressions are compared to numerical estimates from simulations in Chang et al. (Phys Rev D 99(8):083002, 2019). A good agreement is found.