A quantitative analysis of Gravitational Wave spectrum sourced from First-Order Chiral Phase Transition of QCD
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866910821030821888 |
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| author | Zheng, Hui-wen Gao, Fei Bian, Ligong Qin, Si-xue Liu, Yu-xin |
| author_facet | Zheng, Hui-wen Gao, Fei Bian, Ligong Qin, Si-xue Liu, Yu-xin |
| contents | We investigate the cosmological first-order chiral phase transition of QCD, and for the first time calculate its parameters which can fully determine the gravitational wave spectrum. With the state-of-the-art calculation from the functional QCD method, we found that the large chemical potential of QCD phase transition results in very weak and fast first-order phase transitions at the temperature lower than $\mathcal{O}(10^2)$ MeV. These results further suggest that the GW signals of NANOGrav are very unlikely sourced from the chiral phase transition of QCD. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_03795 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A quantitative analysis of Gravitational Wave spectrum sourced from First-Order Chiral Phase Transition of QCD Zheng, Hui-wen Gao, Fei Bian, Ligong Qin, Si-xue Liu, Yu-xin High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics We investigate the cosmological first-order chiral phase transition of QCD, and for the first time calculate its parameters which can fully determine the gravitational wave spectrum. With the state-of-the-art calculation from the functional QCD method, we found that the large chemical potential of QCD phase transition results in very weak and fast first-order phase transitions at the temperature lower than $\mathcal{O}(10^2)$ MeV. These results further suggest that the GW signals of NANOGrav are very unlikely sourced from the chiral phase transition of QCD. |
| title | A quantitative analysis of Gravitational Wave spectrum sourced from First-Order Chiral Phase Transition of QCD |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2407.03795 |