Record #823115

srEDM

Search for electric dipole moments using storage rings

Coordinator	University of Ferrara ; Forschungszentrum Jülich ; RWTH Aachen University
Grant period	2016-10-01 - 2022-09-30
Funding body	European Union
Call number	ERC-2015-AdG
Grant number	694340
Identifier	G:(EU-Grant)694340

Note: One of the great mysteries in the natural sciences is the dominance of matter over antimatter in the universe. According to our present understanding, the early universe contained the same amount of matter and antimatter. If the universe had behaved symmetrically as it developed, every particle would have been annihilated by one of its antiparticles. We therefore owe our very existence to mechanisms that have led to a world where something that we call matter remains. We propose to study such mechanisms by searching for electric dipole moments (EDMs) of charged hadrons in a new class of precision storage rings. Our project will lay the foundations for a new European flagship research infrastructure. The breaking of the combined charge conjugation and parity symmetries (CP-violation) in the Standard Model is not strong enough to explain the observed excess of matter and further sources of CP-violation must be sought. These sources could manifest themselves in Electric Dipole Moments of elementary particles, which occur when the centroids of positive and negative charges are mutually and permanently displaced. The observation of an electric dipole moment will elucidate the mechanisms which led to the matter that dominates the universe. Although the measurement principle, the time development of the polarization vector subject to a perpendicular electric field, is simple, the smallness of the effect makes this an enormously challenging project. This can only be mastered through the common effort of an international team of accelerator and particle physicists, working closely with engineers. The proponents of this design study and the research environment at the Forschungszentrum Jülich (Germany), including the conventional storage ring COSY, provide the optimal basis for one of the most spectacular possibilities in modern science: finding an EDM as a signal for new physics beyond the Standard Model and perhaps explaining the puzzle of our existence.

Recent Publications

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Journal Article Slim, J. ; Rathmann, F. (Corresponding author)FZJ* ; Andres, A.FZJ* ; et al
Proof-of-principle demonstration of a pilot bunch comagnetometer in a stored beam
Physical review research 7(2), 023257 (2025) [10.1103/PhysRevResearch.7.023257]2025 OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Journal Article Hejny, V. (Corresponding author)FZJ* ; Andres, A.FZJ* ; Pretz, J.FZJ* ; et al
Maintaining a resonance condition of an rf spin rotator through a feedback loop in a storage ring
Physical review accelerators and beams 28(6), 062801 (2025) [10.1103/PhysRevAccelBeams.28.062801]2025 OpenAccess Files Fulltext BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Invited) Hejny, V. (Corresponding author)FZJ*
Spin tune determination and feedback
2025Polarized Ion Sources and Beams at EIC, Stony BrookStony Brook, USA, 10 Mar 2025 - 12 Mar 20252025-03-102025-03-12 [10.34734/FZJ-2025-02293] OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Journal Article Nikolaev, N. N. ; Rathmann, F. (Corresponding author)FZJ* ; Slim, J. ; et al
Spin decoherence and off-resonance behavior of radio-frequency-driven spin rotations in storage rings
Physical review accelerators and beams 27(11), 111002 (2024) [10.1103/PhysRevAccelBeams.27.111002]2024 OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Other) Margos, M.FZJ*
Determining quadrupole magnetic length shortening in COSY using a Bmad model
2024DPG-Frühjahrstagung, DPG24, RWTH AachenBerlin, RWTH Aachen, Germany, 17 Mar 2024 - 22 Mar 20242024-03-172024-03-22 [10.34734/FZJ-2024-02087] OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Invited) Tempel, V.FZJ*
Statistical Methods in the Search for Electric Dipole Moments at COSY
2024DPG Spring Meeting 2024 Karlsruhe, KarlsruheKarlsruhe, Germany, 4 Mar 2024 - 8 Mar 20242024-03-042024-03-08 [10.34734/FZJ-2024-01906] OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Conference Presentation (Invited) Andres, A.FZJ*
The Search for Electric Dipole Moments of Charged Particles in Storage Rings
2024DPG Frühjahrstagung Karlsruhe, RWTH AachenKarlsruhe, RWTH Aachen, Germany, 4 Mar 2024 - 8 Mar 20242024-03-042024-03-08 [10.34734/FZJ-2024-01896] OpenAccess Files BibTeX | EndNote: XML, Text | RIS

Dissertation / PhD Thesis Shankar, R. (Corresponding author)
Optimization of Spin Coherence Time at a Prototype Storage Ring for Electric Dipole Moment Investigations
159 p. (2023)2023 = Dissertation, Universita di Ferrara, 2023 BibTeX | EndNote: XML, Text | RIS

Dissertation / PhD Thesis Karanth, S. (Corresponding author)
Novel method to search for axion-like particles in storage rings
139 p. (2023)2023 = Dissertation, Jagiellonian University Cracow, 2023 BibTeX | EndNote: XML, Text | RIS

Master Thesis Suvarna, R. P. (Corresponding author)FZJ*
An Investigation of the Signal-to-Noise Ratio of the Rogowski Beam Position Monitor
60 p. (2023)2023 = Masterarbeit, RWTH Aachen, 2023 BibTeX | EndNote: XML, Text | RIS

All known publications ...
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Record created 2016-11-18, last modified 2023-02-07

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