Un-screened forces in Quark-Gluon Plasma?
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866916198089752576 |
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| author | Bazavov, Alexei Hoying, Daniel Larsen, Rasmus N. Mukherjee, Swagato Petreczky, Peter Rothkopf, Alexander Weber, Johannes Heinrich |
| author_facet | Bazavov, Alexei Hoying, Daniel Larsen, Rasmus N. Mukherjee, Swagato Petreczky, Peter Rothkopf, Alexander Weber, Johannes Heinrich |
| contents | We study the correlator of temporal Wilson lines at non-zero temperature in 2+1 flavor lattice QCD with the aim to define the heavy quark-antiquark potential at non-zero temperature. For temperatures $153~{\rm MeV} \leq T \leq 352~{\rm MeV}$ the spectral representation of this correlator is consistent with a broadened peak in the spectral function, position or width of which then defines the real or imaginary parts of the heavy quark-antiquark potential at non-zero temperature, respectively. We find that the potential's real part is not screened contrary to the widely-held expectations. We comment on how this fact may modify the picture of quarkonium melting in the quark-gluon plasma. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_16587 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Un-screened forces in Quark-Gluon Plasma? Bazavov, Alexei Hoying, Daniel Larsen, Rasmus N. Mukherjee, Swagato Petreczky, Peter Rothkopf, Alexander Weber, Johannes Heinrich High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory We study the correlator of temporal Wilson lines at non-zero temperature in 2+1 flavor lattice QCD with the aim to define the heavy quark-antiquark potential at non-zero temperature. For temperatures $153~{\rm MeV} \leq T \leq 352~{\rm MeV}$ the spectral representation of this correlator is consistent with a broadened peak in the spectral function, position or width of which then defines the real or imaginary parts of the heavy quark-antiquark potential at non-zero temperature, respectively. We find that the potential's real part is not screened contrary to the widely-held expectations. We comment on how this fact may modify the picture of quarkonium melting in the quark-gluon plasma. |
| title | Un-screened forces in Quark-Gluon Plasma? |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2308.16587 |