Symmetry Energy of 2+1-flavor dense quark matter from perturbative QCD
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866909873441079296 |
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| author | Danhoni, Isabella Yang, Yumu Hippert, Mauricio Noronha-Hostler, Jacquelyn |
| author_facet | Danhoni, Isabella Yang, Yumu Hippert, Mauricio Noronha-Hostler, Jacquelyn |
| contents | The symmetry energy expansion was developed to connect isospin symmetric matter probed in nuclear experiments to asymmetric matter found in neutron stars. Using the isospin asymmetry derived from the Gell-Mann-Nishijima formula, we derive the symmetry energy expansion for quark matter that has unique properties compared to hadronic matter. To test our methods, we use perturbative Quantum Chromodynamics (pQCD) calculations at next-to-leading-order, where realistic quark masses can be included. We find that pQCD at electroweak equilibrium is not isospin symmetric but rather obtains a small skewness term in the symmetry energy expansion. We predict that if equations of state for nuclear matter must match pQCD results, then a non-monotonic dip in the symmetry energy would appear. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_23984 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Symmetry Energy of 2+1-flavor dense quark matter from perturbative QCD Danhoni, Isabella Yang, Yumu Hippert, Mauricio Noronha-Hostler, Jacquelyn Nuclear Theory High Energy Astrophysical Phenomena High Energy Physics - Phenomenology The symmetry energy expansion was developed to connect isospin symmetric matter probed in nuclear experiments to asymmetric matter found in neutron stars. Using the isospin asymmetry derived from the Gell-Mann-Nishijima formula, we derive the symmetry energy expansion for quark matter that has unique properties compared to hadronic matter. To test our methods, we use perturbative Quantum Chromodynamics (pQCD) calculations at next-to-leading-order, where realistic quark masses can be included. We find that pQCD at electroweak equilibrium is not isospin symmetric but rather obtains a small skewness term in the symmetry energy expansion. We predict that if equations of state for nuclear matter must match pQCD results, then a non-monotonic dip in the symmetry energy would appear. |
| title | Symmetry Energy of 2+1-flavor dense quark matter from perturbative QCD |
| topic | Nuclear Theory High Energy Astrophysical Phenomena High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2510.23984 |