A mixed F- and D-term uplift in supergravity evades the Planckian lower bound on the R-axion decay constant, allowing it to be the QCD axion and dark matter.
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Inflaton-gluon coupling during inflation requires p=2 plateau models to produce isocurvature-free QCD axion dark matter.
Topology of Euclidean Schwarzschild black holes permits dyonic electromagnetic instantons that source CP-asymmetric Hawking radiation via the theta term.
citing papers explorer
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An Intermediate Scale R-axion \& the QCD Axion
A mixed F- and D-term uplift in supergravity evades the Planckian lower bound on the R-axion decay constant, allowing it to be the QCD axion and dark matter.
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Isocurvature-Free QCD Axion Dark Matter from Inflaton-Driven Early QCD: the Necessity of Inflationary Plateaus
Inflaton-gluon coupling during inflation requires p=2 plateau models to produce isocurvature-free QCD axion dark matter.
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Electromagnetic instantons and asymmetric Hawking radiation of black holes
Topology of Euclidean Schwarzschild black holes permits dyonic electromagnetic instantons that source CP-asymmetric Hawking radiation via the theta term.