Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2512.11638 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908707558785024 |
|---|---|
| author | Urrea-Niño, Juan Andrés Bignell, Ryan Campion, Ruaidhrí Ryan, Sinéad M. |
| author_facet | Urrea-Niño, Juan Andrés Bignell, Ryan Campion, Ruaidhrí Ryan, Sinéad M. |
| contents | Drawing upon well established zero-temperature techniques, we present, for the first time in a lattice calculation, insight into the fate of the $1^{-+}$ exotic charmonium state at finite temperature. Specifically, using anisotropic FASTSUM ensembles we employ distillation with a wide operator basis which has been extensively used at zero-temperature by the Hadron Spectrum Collaboration to study the charmonium spectrum. The constant contribution to some finite-temperature temporal correlation functions requires particular care with the extended operator basis common to distillation setups and we discuss this effect. As an alternative to derivative based extended operators, we also consider the use of optimal distillation profiles at finite temperature for the first time. Finally, we remark on the temperature dependence of the $1^{-+}$ spectral function by consideration of the reconstructed correlator method. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_11638 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hybrid Charmonium at Finite Temperature Urrea-Niño, Juan Andrés Bignell, Ryan Campion, Ruaidhrí Ryan, Sinéad M. High Energy Physics - Lattice Drawing upon well established zero-temperature techniques, we present, for the first time in a lattice calculation, insight into the fate of the $1^{-+}$ exotic charmonium state at finite temperature. Specifically, using anisotropic FASTSUM ensembles we employ distillation with a wide operator basis which has been extensively used at zero-temperature by the Hadron Spectrum Collaboration to study the charmonium spectrum. The constant contribution to some finite-temperature temporal correlation functions requires particular care with the extended operator basis common to distillation setups and we discuss this effect. As an alternative to derivative based extended operators, we also consider the use of optimal distillation profiles at finite temperature for the first time. Finally, we remark on the temperature dependence of the $1^{-+}$ spectral function by consideration of the reconstructed correlator method. |
| title | Hybrid Charmonium at Finite Temperature |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2512.11638 |