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T: Fachverband Teilchenphysik

T 83: Methods in Astroparticle Physics IV

T 83.3: Vortrag

Donnerstag, 19. März 2026, 16:45–17:00, KS 00.004

Simulations of Particle Transmission and Electric Fields for the Munich Electrostatic Storage Ring (ESR) — •Nils Doll, Chiara Brandenstein, Peter Fierlinger, Adil W. Muggo, Dario Rückwarth, Wolfgang Schott, Vitus Schuster, Hans Th. J. Steiger, Konstantin Walter, and Florian Zötl — School of Natural Sciences, Physics-Department, Technical University of Munich, 85748 Garching, Germany

Stored ions or ionic molecules in a non-relativistic electrostatic storage ring can serve as a versatile platform for various fundamental experiments. Through precise control of beam dynamics and polarization, searches for electric dipole moments (EDMs) or axion-like particles (ALPs) become feasible in a rather unique and novel setting. Recent progress on the implementation of such a device is being discussed. COMSOL Multiphysics was used for a detailed field-based analysis of beam propagation, capturing emittance growth, phase-space evolution and nonlinear effects from realistic electrode geometries. A comparative simulation study of ion beam stability in an electrostatic storage ring is presented, focusing on the influence of fringe fields, space-charge effects, and radio-frequency (RF) systems for energy and trajectory control of barium and copper ions.

Keywords: Electrostatic Storage Ring; Electric Dipole Moments; Axion-Like Particles; Beam Dynamics; Numerical Simulations