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	Podcast:		Theoretical Physics - From Outer Space to Plasma
	Episode:		The Axion: How Angles Become Particles
	Category:		Education
	Duration:		00:48:27
	Publish Date:		2022-12-01 10:18:17
	Description:		Professor Joseph Conlon introduces the general idea of axions: particles associated to fields which are valued on a circle rather than a real line. He describes the still unresolved strong CP problem of the Standard Model, for which the so-called QCD axion provides the most plausible solution. He explains the typical coupling of particle physics axions to electromagnetism and how this leads to axion-photon conversion in magnetic fields and potential search strategies for axions.
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