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

Abstract

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.

arXiv comment20 pages

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• Flavor probes of axion-like particles
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• On the interplay between astrophysical and laboratory probes of MeV-scale axion-like particles
• The QCD Axion at Finite Density
• QCD $\theta$-vacuum energy and axion properties
• CP-violating axion interactions in effective field theory
• Naturally astrophobic QCD axion
• The Chiral Lagrangian of CP-Violating Axion-Like Particles
• The axion-baryon coupling in SU(3) heavy baryon chiral perturbation theory
• From Supernovae to Neutron Stars: A Systematic Approach to Axion Production at Finite Density
• Pion axioproduction: The Delta resonance contribution
• Leading Logs in QCD Axion Effective Field Theory
• Do Finite Density Effects Jeopardize Axion Nucleophobia in Supernovae?
• Axion Bounds from Quantum Technology
• Flavor-changing axions and Dirac neutrino masses
• Misconceptions on Effective Field Theories and spontaneous symmetry breaking: Response to Ellis' article
• Pion axioproduction revisited