NRQCD Bottomonium at non-zero temperature using time-derivative moments
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912243595083776 |
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| author | D'arcy, Rachel Horohan Aarts, Gert Allton, Chris Bignell, Ryan Burns, Timothy Jaeger, Benjamin Kim, Seyong Lombardo, Maria Paola Ryan, Sinéad Smecca, Antonio Skullerud, Jon-Ivar |
| author_facet | D'arcy, Rachel Horohan Aarts, Gert Allton, Chris Bignell, Ryan Burns, Timothy Jaeger, Benjamin Kim, Seyong Lombardo, Maria Paola Ryan, Sinéad Smecca, Antonio Skullerud, Jon-Ivar |
| contents | A well-known challenge for the lattice community is calculating the spectral function from the Euclidean correlator. We have approximated the spectral function and derived the mass and thermal width of particles through the time derivatives of the lattice correlator moments. We have focused on extracting the properties of bottomonium states, specifically $Υ$ and $χ_{b1}$. We will give an overview of the time-derivative moments approach and present results for the temperature dependence of the mass and width of both bottomonium states. The zero temperature results are consistent with experimental values, while results at higher temperatures are similar to those obtained using other methods. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_03951 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | NRQCD Bottomonium at non-zero temperature using time-derivative moments D'arcy, Rachel Horohan Aarts, Gert Allton, Chris Bignell, Ryan Burns, Timothy Jaeger, Benjamin Kim, Seyong Lombardo, Maria Paola Ryan, Sinéad Smecca, Antonio Skullerud, Jon-Ivar High Energy Physics - Lattice A well-known challenge for the lattice community is calculating the spectral function from the Euclidean correlator. We have approximated the spectral function and derived the mass and thermal width of particles through the time derivatives of the lattice correlator moments. We have focused on extracting the properties of bottomonium states, specifically $Υ$ and $χ_{b1}$. We will give an overview of the time-derivative moments approach and present results for the temperature dependence of the mass and width of both bottomonium states. The zero temperature results are consistent with experimental values, while results at higher temperatures are similar to those obtained using other methods. |
| title | NRQCD Bottomonium at non-zero temperature using time-derivative moments |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2502.03951 |