Axions in Baryon Chiral Perturbation Theory
Thomas Vonk
TL;DR
This paper reviews recent theoretical advances in modeling QCD axion interactions with baryons using chiral perturbation theory, providing numerical estimates for axion-baryon couplings in different models.
Contribution
It introduces how axions can be incorporated into heavy baryon chiral perturbation theory and presents new numerical results for axion-baryon couplings in SU(2) and SU(3) frameworks.
Findings
Numerical estimates of axion-baryon couplings in SU(2) and SU(3) models.
Demonstration of axion inclusion into heavy baryon chiral perturbation theory.
Comparison of couplings in KSVZ and DFSZ axion models.
Abstract
I give an overview of recent developments in the study of the coupling of the QCD axion to nucleons and other octet baryons. I demonstrate how axions can be included into heavy baryon chiral perturbation theory, and present recent numerical results for the several axion-baryon couplings in SU(2) and SU(3) chiral perturbation theory for the Kim--Shifman--Vainstein--Zakharov (KSVZ) and the Dine--Fischler--Srednicki--Zhitnitsky (DFSZ) axion model.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Pulsars and Gravitational Waves Research