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

http://arxiv.org/abs/2001.05327


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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T. Vonk, F. Guo and U. Meißner
Thu, 16 Jan 20
9/46

Comments: 20 pages