Charmonium properties at high temperatures from lattice QCD
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866918511752773632 |
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| author | Larsen, Rasmus Normann Petreczky, Peter Golan, Jorge Luis Dasilva Weber, Johannes H. |
| author_facet | Larsen, Rasmus Normann Petreczky, Peter Golan, Jorge Luis Dasilva Weber, Johannes H. |
| contents | We study charmonium properties at non-zero temperature in the temperature range 153 MeV $<T<$ 305 MeV using lattice QCD. We use HISQ action for dynamical quarks and Wilson clover action for valence charm quarks and calculate the correlation function of extended meson operators. Our lattice QCD results are consistent with the existence of all charmonium states below the open charm threshold in this temperature region. However, charmonium states acquire sizable thermal width, which increases with increasing temperature. The size of the thermal width follows the hierarchy of charmonium sizes, i.e. the smaller ground state charmonium has a smaller thermal width than the larger excited charmonia. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_20034 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Charmonium properties at high temperatures from lattice QCD Larsen, Rasmus Normann Petreczky, Peter Golan, Jorge Luis Dasilva Weber, Johannes H. High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory We study charmonium properties at non-zero temperature in the temperature range 153 MeV $<T<$ 305 MeV using lattice QCD. We use HISQ action for dynamical quarks and Wilson clover action for valence charm quarks and calculate the correlation function of extended meson operators. Our lattice QCD results are consistent with the existence of all charmonium states below the open charm threshold in this temperature region. However, charmonium states acquire sizable thermal width, which increases with increasing temperature. The size of the thermal width follows the hierarchy of charmonium sizes, i.e. the smaller ground state charmonium has a smaller thermal width than the larger excited charmonia. |
| title | Charmonium properties at high temperatures from lattice QCD |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2605.20034 |