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The Axion: How Angles Become Particles

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Duration: 0:48:27 | Added: 01 Dec 2022
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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