QCD axion window and low-scale inflation
We show that the upper bound of the classical QCD axion window can be significantly relaxed for low-scale inflation. If the Gibbons-Hawking temperature during inflation is lower than the QCD scale, the initial QCD axion misalignment angle follows the Bunch-Davies distribution. The distribution is pe...
| Main Authors: | , , |
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| Other Authors: | , |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society,
2018-08-01T14:46:12Z.
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| Subjects: | |
| Online Access: | Get fulltext |