Journal
PHYSICAL REVIEW D
Volume 102, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.102.015011
Keywords
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Funding
- National Research Foundation of Korea (NRF) - Korean government [NRF-2020R1C1C1012452]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2019R1I1A1A01060680]
- IBS [IBS-R018-D1]
- National Research Foundation of Korea [2019R1I1A1A01060680] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Implications of supersymmetrizing the clockwork axions are studied. Supersymmetry ensures that the saxions and axinos have the same pattern of the coupling hierarchy as the clockwork axions. If we assume supersymmetry breaking is universal over the clockwork sites, the coupling structure is preserved, while the mass orderings of the saxions and axinos can differ depending on the supersymmetry breaking scale. While the massive saxions and axions quickly decay, the lightest axino can be stable and, thus, a dark matter candidate. The relic abundance of the axino dark matter from thermal production is mostly determined by decays of the heavier axinos in the normal mass ordering. This exponentially enhances the thermal yield compared to the conventional axino scenarios. Some cosmological issues are discussed.
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