scholarly journals Electric dipole moment searches using storage rings

2019 ◽  
Author(s):  
Frank RATHMANN ◽  
Nikolai N Nikolaev
Keyword(s):  
Dipole Moment ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Storage Rings

scholarly journals Storage Ring Based EDM Search — Achievements and Goals

2016 ◽  
Vol 40 ◽  
pp. 1660092
Author(s):  
Andreas Lehrach
Keyword(s):  
Dipole Moment ◽  
Charged Particle ◽  
Storage Ring ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Storage Rings ◽  
Experimental Results ◽  
Design And Optimization ◽  
Future Goals

This paper summarizes the experimental achievements of the JEDI (Jülich Electric Dipole moment Investigations) Collaboration to exploit and demonstrate the feasibility of charged particle Electric Dipole Moment searches with storage rings at the Cooler Synchrotron COSY of the Forschungszentrum Jülich. Recent experimental results, design and optimization of critical accelerator elements, progress in beam and spin tracking, and future goals of the R & D program at COSY are presented.

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

2020 ◽  
Vol 80 (2) ◽  
Author(s):  
J. Pretz ◽  
S. P. Chang ◽  
V. Hejny ◽  
S. Karanth ◽  
S. Park ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Electric Fields ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Storage Rings ◽  
Spin Motion ◽  
Axion Field ◽  
Analytic Expressions ◽  
Analytical Expressions ◽  
Good Agreement

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.

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