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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2408.07740 |
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| _version_ | 1866910751748259840 |
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| author | Gómez-Bañón, Antonio Bartnick, Kai Springmann, Konstantin Pons, José A. |
| author_facet | Gómez-Bañón, Antonio Bartnick, Kai Springmann, Konstantin Pons, José A. |
| contents | The existence of light QCD axions, whose mass depends on an additional free parameter, can lead to a new ground state of matter, where the sourced axion field reduces the nucleon effective mass. The presence of the axion field has structural consequences, in particular, it results in a thinner (or even prevents its existence) heat-blanketing envelope, significantly altering the cooling patterns of neutron stars. We exploit the anomalous cooling behavior to constrain previously uncharted regions of the axion parameter space by comparing model predictions with existing data from isolated neutron stars. Notably, this analysis does not require the light QCD axion to be the dark matter candidate. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_07740 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Constraining Light QCD Axions with Isolated Neutron Star Cooling Gómez-Bañón, Antonio Bartnick, Kai Springmann, Konstantin Pons, José A. High Energy Physics - Phenomenology High Energy Astrophysical Phenomena The existence of light QCD axions, whose mass depends on an additional free parameter, can lead to a new ground state of matter, where the sourced axion field reduces the nucleon effective mass. The presence of the axion field has structural consequences, in particular, it results in a thinner (or even prevents its existence) heat-blanketing envelope, significantly altering the cooling patterns of neutron stars. We exploit the anomalous cooling behavior to constrain previously uncharted regions of the axion parameter space by comparing model predictions with existing data from isolated neutron stars. Notably, this analysis does not require the light QCD axion to be the dark matter candidate. |
| title | Constraining Light QCD Axions with Isolated Neutron Star Cooling |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2408.07740 |