Hot and Dense QCD Shear Viscosity at (almost) NLO
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866911974640582656 |
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| author | Danhoni, Isabella Moore, Guy D. |
| author_facet | Danhoni, Isabella Moore, Guy D. |
| contents | The next-to-leading order weak-coupling shear viscosity of QCD was computed 6 years ago.
However, these results have never been applied at finite baryon chemical potential $μ$, even though intermediate-energy heavy ion collisions and merging neutron stars may explore the Quark-Gluon Plasma in a regime where baryon chemical potentials are large.
Here, we extend the next-to-leading order shear viscosity calculations to finite $μ$, and we show that, while the convergence of the weak-coupling expansion is questionable for achievable plasmas, it is somewhat better at $μ> T$ than at $μ=0$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_00524 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Hot and Dense QCD Shear Viscosity at (almost) NLO Danhoni, Isabella Moore, Guy D. High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory The next-to-leading order weak-coupling shear viscosity of QCD was computed 6 years ago. However, these results have never been applied at finite baryon chemical potential $μ$, even though intermediate-energy heavy ion collisions and merging neutron stars may explore the Quark-Gluon Plasma in a regime where baryon chemical potentials are large. Here, we extend the next-to-leading order shear viscosity calculations to finite $μ$, and we show that, while the convergence of the weak-coupling expansion is questionable for achievable plasmas, it is somewhat better at $μ> T$ than at $μ=0$. |
| title | Hot and Dense QCD Shear Viscosity at (almost) NLO |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2408.00524 |