Conference Paper/Proceeding/Abstract 69 views 9 downloads
Spectral properties of bottomonium at high temperature: a systematic investigation
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Chris Allton ,
Naeem Anwar ,
Ryan Bignell,
Timothy Burns ,
Rachel Horohan D'arcy,
Benjamin Jäger,
Seyong Kim,
Maria Paola Lombardo,
Ben Page,
Sinead M. Ryan,
Antonio Smecca,
Tom Spriggs
Proceedings of The XVIth Quark Confinement and the Hadron Spectrum Conference — PoS(QCHSC24), Volume: 483, Start page: 160
Swansea University Authors:
Gert Aarts , Chris Allton , Naeem Anwar , Timothy Burns
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DOI (Published version): 10.22323/1.483.0160
Abstract
We investigate spectral features of bottomonium at high temperature, in particular the thermal mass shift and width of ground state S-wave and P-wave state. We employ and compare a range of methods for determining these features from lattice NRQCD correlators, including direct correlator analyses (m...
| Published in: | Proceedings of The XVIth Quark Confinement and the Hadron Spectrum Conference — PoS(QCHSC24) |
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| ISSN: | 1824-8039 |
| Published: |
Trieste, Italy
Sissa Medialab
2025
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa70967 |
| Abstract: |
We investigate spectral features of bottomonium at high temperature, in particular the thermal mass shift and width of ground state S-wave and P-wave state. We employ and compare a range of methods for determining these features from lattice NRQCD correlators, including direct correlator analyses (multi-exponential fits and moments of spectral functions), linear methods (Backus-Gilbert, Tikhonov and HLT methods), and Bayesian methods for spectral function reconstruction (MEM and BR). We comment on the reliability and limitations of the various methods. |
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| College: |
Faculty of Science and Engineering |
| Funders: |
We acknowledge EuroHPC Joint Undertaking for awarding the project EHPC-EXT-2023E01-
010 access to LUMI-C, Finland. This work used the DiRAC Data Intensive service (DIaL2 and
DIaL) at the University of Leicester, managed by the University of Leicester Research Computing
Service on behalf of the STFC DiRAC HPC Facility (www.dirac.ac.uk). The DiRAC service at
Leicester was funded by BEIS, UKRI and STFC capital funding and STFC operations grants.
This work used the DiRAC Extreme Scaling service (Tesseract) at the University of Edinburgh,
managed by the Edinburgh Parallel Computing Centre on behalf of the STFC DiRAC HPC Facility (www.dirac.ac.uk). The DiRAC service at Edinburgh was funded by BEIS, UKRI and STFC
capital funding and STFC operations grants. DiRAC is part of the UKRI Digital Research Infrastructure. This work was performed using the PRACE Marconi-KNL resources hosted by CINECA,
Italy. We acknowledge the support of the Supercomputing Wales project, which is part-funded
by the European Regional Development Fund (ERDF) via Welsh Government, and the University
of Southern Denmark for use of computing facilities. This work is supported by STFC grant ST/X000648/1 and The Royal Society Newton International Fellowship. RB acknowledges support from a Science Foundation Ireland Frontiers for the Future Project award with grant number
SFI-21/FFP-P/10186. RHD acknowledges support from Taighde Éireann – Research Ireland under
Grant number GOIPG/2024/3507. |
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