期刊
PHYSICAL REVIEW D
卷 98, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.98.043531
关键词
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资金
- World Premier International Research Center (WPI) Initiative, MEXT, Japan
- MEXT KAKENHI [15H05889]
- JSPS KAKENHI [17K05434, 17H01131, 15K17634]
- JSPS-National Research Foundation Korea (NRF) Joint Research Project
We examine the oscillon formation in a recently proposed inflation model of the pure natural inflation, where the inflaton is an axion that couples to a strongly coupled pure Yang-Mills theory. The plateau of the inflaton potential, which is favored by recent observations, drives the fragmentation of the inflaton and can produce spatially localized oscillons. We find that the oscillons are formed for F less than or similar to O(0.1)M-pl, with F the effective decay constant of the model. We also comment on observational implications of the oscillons.
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