String theory and the dark glueball problem
We study cosmological constraints on dark pure Yang-Mills sectors. Dark glueballs are overproduced for large regions of ultraviolet parameter space. The problem may be alleviated in two ways: via a large preferential reheating into the visible sector, motivating certain inflation or modulus decay mo...
| Main Authors: | , , |
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| Format: | Journal article |
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American Physical Society
2017
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| _version_ | 1797072824045666304 |
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| author | Halverson, J Nelson, B Ruehle, F |
| author_facet | Halverson, J Nelson, B Ruehle, F |
| author_sort | Halverson, J |
| collection | OXFORD |
| description | We study cosmological constraints on dark pure Yang-Mills sectors. Dark glueballs are overproduced for large regions of ultraviolet parameter space. The problem may be alleviated in two ways: via a large preferential reheating into the visible sector, motivating certain inflation or modulus decay models, or via decays into axions or moduli, which are strongly constrained by nucleosynthesis and ΔNeff bounds. String models frequently have multiple hidden Yang-Mills sectors, which are subject to even stronger constraints due to the existence of multiple dark glueballs. |
| first_indexed | 2024-03-06T23:13:13Z |
| format | Journal article |
| id | oxford-uuid:6637d8dc-57a2-4486-9c63-9a1967f4c57c |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:13:13Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:6637d8dc-57a2-4486-9c63-9a1967f4c57c2022-03-26T18:30:28ZString theory and the dark glueball problemJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6637d8dc-57a2-4486-9c63-9a1967f4c57cSymplectic Elements at OxfordAmerican Physical Society2017Halverson, JNelson, BRuehle, FWe study cosmological constraints on dark pure Yang-Mills sectors. Dark glueballs are overproduced for large regions of ultraviolet parameter space. The problem may be alleviated in two ways: via a large preferential reheating into the visible sector, motivating certain inflation or modulus decay models, or via decays into axions or moduli, which are strongly constrained by nucleosynthesis and ΔNeff bounds. String models frequently have multiple hidden Yang-Mills sectors, which are subject to even stronger constraints due to the existence of multiple dark glueballs. |
| spellingShingle | Halverson, J Nelson, B Ruehle, F String theory and the dark glueball problem |
| title | String theory and the dark glueball problem |
| title_full | String theory and the dark glueball problem |
| title_fullStr | String theory and the dark glueball problem |
| title_full_unstemmed | String theory and the dark glueball problem |
| title_short | String theory and the dark glueball problem |
| title_sort | string theory and the dark glueball problem |
| work_keys_str_mv | AT halversonj stringtheoryandthedarkglueballproblem AT nelsonb stringtheoryandthedarkglueballproblem AT ruehlef stringtheoryandthedarkglueballproblem |