The axion-baryon coupling in SU(3) heavy baryon chiral perturbation theory
| Autor: | Feng-Kun Guo, Thomas Vonk, Ulf-G. Meißner |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
High Energy Physics - Theory
Nuclear and High Energy Physics Particle physics Nuclear Theory Heavy baryon chiral perturbation theory Octet High Energy Physics::Lattice FOS: Physical sciences QC770-798 Nuclear Theory (nucl-th) High Energy Physics - Lattice High Energy Physics - Phenomenology (hep-ph) Nuclear and particle physics. Atomic energy. Radioactivity ddc:530 Nuclear Experiment Axion Physics High Energy Physics - Lattice (hep-lat) High Energy Physics::Phenomenology Hyperon Effective Field Theories Nuclear matter Cosmology of Theories beyond the SM Symmetry (physics) Baryon High Energy Physics - Phenomenology Neutron star High Energy Physics - Theory (hep-th) Chiral Lagrangians |
| Zdroj: | Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-40 (2021) Journal of high energy physics 2021(8), 24 (2021). doi:10.1007/JHEP08(2021)024 Journal of High Energy Physics |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2021)024 |
| Popis: | In the past, the axion-nucleon coupling has been calculated in the framework of SU(2) heavy baryon chiral perturbation theory up to third order in the chiral power counting. Here, we extend these earlier studies to the case of heavy baryon chiral perturbation theory with SU(3) flavor symmetry and derive the axion coupling to the full SU(3) baryon octet, showing that the axion also significantly couples to hyperons. As studies on dense nuclear matter suggest the possible existence of hyperons in stellar objects such as neutron stars, our results should have phenomenological implications related to the so-called axion window. Comment: 45 pages, 1 figure |
| Databáze: | OpenAIRE |
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