Early vs late string networks from a minimal QCD Axion

Abstract We propose a new regime of minimal QCD axion dark matter that lies between the pre- and post-inflationary scenarios, such that the Peccei-Quinn (PQ) symmetry is restored only on sufficiently large spatial scales. This leads to a novel cosmological evolution, in which strings and domain wall...

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Bibliographic Details
Main Authors: Marco Gorghetto, Edward Hardy, Horia Nicolaescu, Alessio Notari, Michele Redi
Format: Article
Language:English
Published: SpringerOpen 2024-02-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP02(2024)223