A5049326257- Atomic and Subatomic Physics Research
- Advanced NMR Techniques and Applications
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Advanced MRI Techniques and Applications
- Magnetic properties of thin films
- Particle physics theoretical and experimental studies
- Advanced Data Storage Technologies
- Electrostatic Discharge in Electronics
- Electron and X-Ray Spectroscopy Techniques
- Physics of Superconductivity and Magnetism
- Integrated Circuits and Semiconductor Failure Analysis
- Crystallography and Radiation Phenomena
- Scientific Research and Discoveries
- Quantum and electron transport phenomena
RWTH Aachen University
2022-2024
Forschungszentrum Jülich
2022-2024
Based on the notion that local dark-matter field of axions or axionlike particles (ALPs) in our Galaxy induces oscillating couplings to spins nucleons and nuclei (via electric dipole moment latter and/or paramagnetic axion-wind effect), we establish feasibility a new method search for ALPs storage rings. previous work allows us maintain in-plane polarization stored deuteron beam few hundred seconds, perform first proof-of-principle experiment at Cooler Synchrotron (COSY) scan momenta near...
This paper presents the successful application of a phase-lock feedback system to maintain resonance condition radio frequency (rf) spin rotator (specifically, an rf Wien filter) with respect 120 kHz precession in Cooler Synchrotron (COSY) storage ring. Real-time monitoring and filter signal allows relative phase between two be stabilized at arbitrary setpoint. The compensates for deviations by adjusting and/or as needed. With this method, variation demand standard deviation...
High-frequency driven resonant spin rotators are routinely used as standard instruments in polarization experiments particle and nuclear physics. Maintaining the continuous exact parametric resonance condition of equality rotator precession frequency during operation is one challenges. We present a detailed analytical description effects detuning on precessing vertical in-plane components polarization. An important part formalism presented here consideration experimentally relevant...
Abstract The matter-antimatter asymmetry might be understood by investigating the EDM (Electric Dipole Moment) of elementary particles. A permanent a subatomic particle violates time reversal and parity symmetry at same would be, with currently achievable experimental accuracy, an indication for further CP violation than established in SM (Standard Model Particle Physics). JEDI-Collaboration (Jülich Electric moment Investigations) Jülich has performed direct measurement deuterons so-called...
Radiofrequency-driven resonant spin rotators are routinely used as standard instruments in polarization experiments particle and nuclear physics. Maintaining the continuous exact parametric spin-resonance condition of equality rotator precession frequency during operation constitutes one challenges. We present a detailed analytic description impact detuning resonance on vertical in-plane precessing components polarization. An important part formalism presented here is consideration...
In polarization experiments at storage rings, one of the challenges is to maintain spin-resonance condition a radio-frequency spin rotator with spin-precessions orbiting particles. Time-dependent variations magnetic fields ring elements lead unwanted precession frequency. We report here on solution this problem by shielding (or masking) bunches stored in from high-frequency rotator, so that masked pilot bunch acts as co-magnetometer for other signal bunch, tracking fluctuations time scale...