Antimatter Free-Fall Experiments and Charge Asymmetry

Jentschura, Ulrich David ✉ [Jentschura, Ulrich David (Fizika), szerző] MTA Atommagkutató Intézet; MTA-DE Részecskefizikai Kutatócsoport (DE / TTK)

Angol nyelvű Szakcikk (Folyóiratcikk) Tudományos
Megjelent: SYMMETRY (BASEL) 2073-8994 13 (7) Paper: 1192 , 12 p. 2021
  • SJR Scopus - Chemistry (miscellaneous): Q2
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We propose a method by which one could use modified antimatter gravity experiments in order to perform a high-precision test of antimatter charge neutrality. The proposal is based on the application of a strong, external, vertically oriented electric field during an antimatter free-fall gravity experiment in the gravitational field of the Earth. The proposed experimental setup has the potential to drastically improve the limits on the charge-asymmetry parameter (epsilon) over bar (q) of antimatter. On the theoretical side, we analyze possibilities to describe a putative charge-asymmetry of matter and antimatter, proportional to the parameters epsilon(q) and (epsilon) over bar (q), by Lagrangian methods. We found that such an asymmetry could be described by four-dimensional Lorentz-invariant operators that break CPT without destroying the locality of the field theory. The mechanism involves an interaction Lagrangian with field operators decomposed into particle or antiparticle field contributions. Our Lagrangian is otherwise Lorentz, as well as PT invariant. Constraints to be derived on the parameter (epsilon) over bar (q) do not depend on the assumed theoretical model.
Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
2025-01-22 21:33