Precision calculation of the axion-nucleon coupling in chiral perturbation theory

Feng-Kun Guo; Thomas Vonk; Ulf-G. Mei{\ss}ner

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Precision calculation of the axion-nucleon coupling in chiral perturbation theory

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arxiv 2001.05327 v1 pith:5ZUBAHN7 submitted 2020-01-15 hep-ph astro-ph.HEhep-latnucl-th

Thomas Vonk , Feng-Kun Guo , Ulf-G. Mei{ss}ner This is my paper

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keywords axion-nucleonchiralcouplingperturbationtheoryaccuracybaryoncalculated

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We derive the axion-nucleon interaction Lagrangian in heavy baryon chiral perturbation theory up to next-to-next-to-leading order. The effective axion-nucleon coupling is calculated to a few percent accuracy.

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