The results of the work are published in the journal "Letters to ECHA". Over the past few decades, numerous methods and approaches have been proposed for measuring the electric dipole moment of the deuteron; however, establishing an effective experimental setup has remained a challenging task. The authors focused on modernizing the magneto-optical structure of the nucleotron to create conditions for precise EDM measurements of the deuteron. In their theoretical work, they addressed four key issues.
Firstly, they implemented the concept of "quasi-frozen" spin in accelerator optics. Secondly, they increased the length of the straight sections between the arcs. Thirdly, they ensured zero dispersion in the straight segments. Fourthly, they tackled the challenge of maintaining the ring's length while accommodating equipment placement.
To achieve these goals, the researchers proposed using electrostatic deflectors with negative curvature, which helps maintain the spin direction along the momentum throughout the entire ring.
As a result of their efforts, a magneto-optical structure with superperiodicity N = 8 was developed, significantly enhancing the conditions for measuring the electric dipole moment of the deuteron. The authors also explored the possibility of transitioning to superperiodicity N = 16, which would further align the structure's properties with a "frozen" configuration, reducing the beam's rotation angle at each arc.
Yuri Senichev, Professor at the Department of Fundamental Interactions and Cosmology at MIPT and leading researcher at IYA RAN, stated: “Our work may open new avenues for investigating the electric dipole moment of light nuclei, potentially leading to significant breakthroughs in understanding the fundamental properties of matter.”
The developed structure can be utilized not only for measuring the electric dipole moment of the deuteron but also for researching the electric dipole moment of the proton, making it a versatile tool for future experiments in nuclear physics. These studies could assist in the search for new physical phenomena and deepen our understanding of subatomic interactions. The work is supported by the Russian Science Foundation.
Published with the support of a grant from the Ministry of Education and Science of Russia within the framework of the federal project "Popularization of Science and Technology" No. 075-15-2024-571.