Axionic suppression of plasma wakefield acceleration

Burton, David and Noble, Adam and Walton, Timothy (2016) Axionic suppression of plasma wakefield acceleration. Journal of Physics A: Mathematical and Theoretical, 49. ISSN 1751-8113

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Abstract

Contemporary attempts to explain the existence of ultra-high energy cosmic rays using plasma-based wakefield acceleration deliberately avoid non-Standard Model particle physics. However, such proposals exploit some of the most extreme environments in the Universe and it is conceivable that hypothetical particles outside the Standard Model have significant implications for the effectiveness of the acceleration process. Axions solve the strong CP problem and provide one of the most important candidates for Cold Dark Matter, and their potential significance in the present context should not be overlooked. Our analysis of the field equations describing a plasma augmented with axions uncovers a dramatic axion-induced suppression of the energy gained by a test particle in the wakefield driven by a particle bunch, or an intense pulse of electromagnetic radiation, propagating at ultra-relativistic speeds within the strongest magnetic fields in the Universe.

Item Type: Journal Article
Journal or Publication Title: Journal of Physics A: Mathematical and Theoretical
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2600/2613
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 75005
Deposited By: ep_importer_pure
Deposited On: 06 Aug 2015 08:42
Refereed?: Yes
Published?: Published
Last Modified: 15 Sep 2019 01:40
URI: https://eprints.lancs.ac.uk/id/eprint/75005

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