Recent Results from the FASTSUM Collaboration

Chris Allton; Gert Aarts; Ryan Bignell; Tim Burns; Sergio Chaves; Simon Hands; Benjamin Jäger; Seyong Kim; Maria Paola Lombardo; Ben Page; Sinéad M. Ryan; Jon Ivar Skullerud; Thomas Spriggs; the FASTSUM collaboration

doi:10.22323/1.430.0198

Recent Results from the FASTSUM Collaboration

Chris Allton^*
, Gert Aarts
, Ryan Bignell
, Tim Burns
, Sergio Chaves
, Simon Hands
, Benjamin Jäger
, Seyong Kim
, Maria Paola Lombardo
, Ben Page
, Sinéad M. Ryan
, Jon Ivar Skullerud
, Thomas Spriggs
, the FASTSUM collaboration

^*Corresponding author for this work

Swansea University
European Centre for Theoretical Studies in Nuclear Physics and Related Areas
University of Liverpool
Sejong University
INFN Sezione di Firenze
Trinity College Dublin
Maynooth University

Research output: Contribution to journal › Conference article › Research › peer-review

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Abstract

The Fastsum Collaboration has developed a comprehensive research programme in thermal QCD using 2 + 1 flavour, anisotropic ensembles. In this talk, we summarise some of our recent results including thermal hadron spectrum calculations using our “Generation 2L” ensembles which have pion masses of 239(1) MeV. These include open charm mesons and charm baryons. We also summarise our work using the Backus Gilbert approach to determining the spectral function of the NRQCD bottomonium system. Finally, we review our determination of the interquark potential in the same system, but using our “Generation 2” ensembles which have heavier pion masses of 384(4) MeV.

Original language	English
Article number	198
Journal	Proceedings of Science
Volume	430
Number of pages	9
ISSN	1824-8039
DOIs	https://doi.org/10.22323/1.430.0198
Publication status	Published - 6. Apr 2023
Event	39th International Symposium on Lattice Field Theory, LATTICE 2022 - Bonn, Germany Duration: 8. Aug 2022 → 13. Aug 2022

Conference

Conference	39th International Symposium on Lattice Field Theory, LATTICE 2022
Country/Territory	Germany
City	Bonn
Period	08/08/2022 → 13/08/2022

Bibliographical note

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

Funding

STFC capital grants ST/R00238X/1, ST/K000373/1 and ST/R002363/1 and STFC DiRAC Operations grants ST/R001006/1 and ST/R001014/1. DiRAC is part of the UK National e-Infrastructure. This work was performed using PRACE resources at Cineca (Italy), CEA (France) and Stuttgart (Germany) via grants 2015133079, 2018194714, 2019214714 and 2020214714. We acknowledge the support of the Swansea Academy for Advanced Computing, the Supercomputing Wales project, which is part-funded by the European Regional Development Fund (ERDF) via Welsh Government, and the University of Southern Denmark and ICHEC, Ireland for use of computing facilities. We are grateful to the Hadron Spectrum Collaboration for the use of their zero temperature ensemble in our Generation 2 work. This work is supported by STFC grant ST/T000813/1. SK is supported by the National Research Foundation of Korea under grant NRF-2021R1A2C1092701 and Grant NRF-2021K1A3A1A16096820, funded by the Korean government (MEST). BP has been supported by a Swansea University Research Excellence Scholarship (SURES). This work used the DiRAC Extreme Scaling service at the University of Edinburgh, operated by the Edinburgh Parallel Computing Centre and the DiRAC Data Intensive service operated by the University of Leicester IT Services on behalf of the STFC DiRAC HPC Facility (www.dirac.ac.uk). This equipment was funded by BEIS capital funding via This work is supported by STFC grant ST/T000813/1. SK is supported by the National Research Foundation of Korea under grant NRF-2021R1A2C1092701 and Grant NRF-2021K1A3A1A16096820, funded by the Korean government (MEST). BP has been supported by a Swansea University Research Excellence Scholarship (SURES). This work used the DiRAC Extreme Scaling service at the University of Edinburgh, operated by the Edinburgh Parallel Computing Centre and the DiRAC Data Intensive service operated by the University of Leicester IT Services on behalf of the STFC DiRAC HPC Facility (www.dirac.ac.uk). This equipment was funded by BEIS capital funding via STFC capital grants ST/R00238X/1, ST/K000373/1 and ST/R002363/1 and STFC DiRAC Operations grants ST/R001006/1 and ST/R001014/1. DiRAC is part of the UK National e-Infrastructure. This work was performed using PRACE resources at Cineca (Italy), CEA (France) and Stuttgart (Germany) via grants 2015133079, 2018194714, 2019214714 and 2020214714. We acknowledge the support of the Swansea Academy for Advanced Computing, the Supercomputing Wales project, which is part-funded by the European Regional Development Fund (ERDF) via Welsh Government, and the University of Southern Denmark and ICHEC, Ireland for use of computing facilities. We are grateful to the Hadron Spectrum Collaboration for the use of their zero temperature ensemble in our Generation 2 work.

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Cite this

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title = "Recent Results from the FASTSUM Collaboration",

abstract = "The Fastsum Collaboration has developed a comprehensive research programme in thermal QCD using 2 + 1 flavour, anisotropic ensembles. In this talk, we summarise some of our recent results including thermal hadron spectrum calculations using our {\textquotedblleft}Generation 2L{\textquotedblright} ensembles which have pion masses of 239(1) MeV. These include open charm mesons and charm baryons. We also summarise our work using the Backus Gilbert approach to determining the spectral function of the NRQCD bottomonium system. Finally, we review our determination of the interquark potential in the same system, but using our {\textquotedblleft}Generation 2{\textquotedblright} ensembles which have heavier pion masses of 384(4) MeV.",

author = "Chris Allton and Gert Aarts and Ryan Bignell and Tim Burns and Sergio Chaves and Simon Hands and Benjamin J{\"a}ger and Seyong Kim and Lombardo, \{Maria Paola\} and Ben Page and Ryan, \{Sin{\'e}ad M.\} and Skullerud, \{Jon Ivar\} and Thomas Spriggs and \{the FASTSUM collaboration\}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).; 39th International Symposium on Lattice Field Theory, LATTICE 2022 ; Conference date: 08-08-2022 Through 13-08-2022",

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AU - Aarts, Gert

AU - Bignell, Ryan

AU - Burns, Tim

AU - Chaves, Sergio

AU - Hands, Simon

AU - Jäger, Benjamin

AU - Kim, Seyong

AU - Lombardo, Maria Paola

AU - Page, Ben

AU - Ryan, Sinéad M.

AU - Skullerud, Jon Ivar

AU - Spriggs, Thomas

AU - the FASTSUM collaboration

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

PY - 2023/4/6

Y1 - 2023/4/6

N2 - The Fastsum Collaboration has developed a comprehensive research programme in thermal QCD using 2 + 1 flavour, anisotropic ensembles. In this talk, we summarise some of our recent results including thermal hadron spectrum calculations using our “Generation 2L” ensembles which have pion masses of 239(1) MeV. These include open charm mesons and charm baryons. We also summarise our work using the Backus Gilbert approach to determining the spectral function of the NRQCD bottomonium system. Finally, we review our determination of the interquark potential in the same system, but using our “Generation 2” ensembles which have heavier pion masses of 384(4) MeV.

AB - The Fastsum Collaboration has developed a comprehensive research programme in thermal QCD using 2 + 1 flavour, anisotropic ensembles. In this talk, we summarise some of our recent results including thermal hadron spectrum calculations using our “Generation 2L” ensembles which have pion masses of 239(1) MeV. These include open charm mesons and charm baryons. We also summarise our work using the Backus Gilbert approach to determining the spectral function of the NRQCD bottomonium system. Finally, we review our determination of the interquark potential in the same system, but using our “Generation 2” ensembles which have heavier pion masses of 384(4) MeV.

U2 - 10.22323/1.430.0198

DO - 10.22323/1.430.0198

M3 - Conference article

AN - SCOPUS:85153203535

SN - 1824-8039

VL - 430

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 198

T2 - 39th International Symposium on Lattice Field Theory, LATTICE 2022

Y2 - 8 August 2022 through 13 August 2022

ER -

Recent Results from the FASTSUM Collaboration

Abstract

Conference

Bibliographical note

Funding

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Cite this