Anisotropic excited bottomonia from a basis of smeared operators
Bottomonia play a crucial role in our understanding of the quark gluon plasma. We present lattice non-relativistic QCD calculations of bottomonia at temperatures in the range $T\in\left[47,\,380\right]$ MeV using the FASTSUM Generation 2L anisotropic $N_f = 2 + 1$ ensembles. The use of a basis of smeared operators allows the extraction of excited-state masses at zero temperature and an investigation of their thermal properties at non-zero temperature. We dind that the ground state signal is substantially improved by this variational approach at finite temperature. We also apply the time-derivative moments approach to the projected or optimal correlation functions at finite temperature.
Authors
- Muhammad Naeem Anwar (ORCID: https://orcid.org/0000-0002-9774-8781)
- Maria Paola Lombardo (ORCID: https://orcid.org/0000-0002-3524-3390)
- Chris Allton (ORCID: https://orcid.org/0000-0003-0795-124X)
- Gert Aarts (ORCID: https://orcid.org/0000-0002-6038-3782)
- Ryan Bignell (ORCID: https://orcid.org/0000-0001-8401-1345)
- Jon-Ivar Skullerud (ORCID: https://orcid.org/0000-0002-8255-0043)
- Sinéad M. Ryan (ORCID: https://orcid.org/0000-0003-0811-7038)
- Rachel Horohan D'arcy (ORCID: https://orcid.org/0000-0002-7084-9531)
- S. Kim (ORCID: https://orcid.org/0000-0002-2102-7398)
- Antonio Smecca (ORCID: https://orcid.org/0000-0002-8887-5826)
- Timothy J. Burns (ORCID: https://orcid.org/0000-0002-7201-6437)
- Benjamin Jäger (ORCID: https://orcid.org/0000-0003-2930-609X)
Publication Details
- Published
- 2025-02-05
- DOI
- https://doi.org/10.22323/1.466.0202
- Citations
- 1
- Primary Topic
- Advanced Numerical Analysis Techniques
- Type
- article
- Field-Weighted Citation Impact
- 1.33
Funders
- UK Research and Innovation
- University of Leicester
- Science Foundation Ireland
- Partnership for Advanced Computing in Europe AISBL
- Science and Technology Facilities Council
- European Regional Development Fund