4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage
Although calculations of QCD thermodynamics from first-principle lattice simulations are limited to zero net-density due to the fermion sign problem, several methods have been developed to extend the equation of state (EoS) to finite values of the B, Q, S chemical potentials. Taylor expansion around...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06002.pdf |
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| author | Jahan Johannes Abuali Ahmed Borsányi Szabolcs Kahangirwe Micheal Parotto Paolo Pásztor Attila Ratti Claudia Shah Hitansh Trabulsi Seth A. |
| author_facet | Jahan Johannes Abuali Ahmed Borsányi Szabolcs Kahangirwe Micheal Parotto Paolo Pásztor Attila Ratti Claudia Shah Hitansh Trabulsi Seth A. |
| author_sort | Jahan Johannes |
| collection | DOAJ |
| description | Although calculations of QCD thermodynamics from first-principle lattice simulations are limited to zero net-density due to the fermion sign problem, several methods have been developed to extend the equation of state (EoS) to finite values of the B, Q, S chemical potentials. Taylor expansion around µi = 0 (i = B, Q, S) enables to cover with confidence the region up to µi/T < 2.5. Recently, a new method has been developed to compute a 2D EoS in the (T, µB) plane. It was constructed through a T -expansion scheme (TExS), based on a resummation of the Taylor expansion, and is trusted up to densities around µB/T = 3.5. We present here the new 4D-TExS EoS, a generalization of the TExS to all 3 chemical potentials, expected to offer a larger coverage than the 4D Taylor expansion EoS. After explaining the basics of the T -Expansion Scheme and how it is generalized to multiple dimensions, we will present results for thermodynamic observables as functions of temperature and both finite baryon and strangeness chemical potentials. |
| format | Article |
| id | doaj-art-972674d4e0e14456aac3a03080320420 |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-972674d4e0e14456aac3a030803204202025-02-05T10:53:02ZengEDP SciencesEPJ Web of Conferences2100-014X2025-01-013160600210.1051/epjconf/202531606002epjconf_sqm2024_060024D-TExS: A new 4D lattice-QCD equation of state with extended density coverageJahan Johannes0Abuali Ahmed1Borsányi Szabolcs2Kahangirwe Micheal3Parotto Paolo4Pásztor Attila5Ratti Claudia6Shah Hitansh7Trabulsi Seth A.8Department of Physics, University of HoustonDepartment of Physics, University of HoustonDepartment of Physics, Wuppertal UniversityDepartment of Physics, University of HoustonDipartimento di Fisica, Università di Torino and INFN Torino, Via P. Giuria 1Institute for Theoretical Physics, ELTE Eötvös Loránd UniversityDepartment of Physics, University of HoustonDepartment of Physics, University of HoustonDepartment of Physics, University of HoustonAlthough calculations of QCD thermodynamics from first-principle lattice simulations are limited to zero net-density due to the fermion sign problem, several methods have been developed to extend the equation of state (EoS) to finite values of the B, Q, S chemical potentials. Taylor expansion around µi = 0 (i = B, Q, S) enables to cover with confidence the region up to µi/T < 2.5. Recently, a new method has been developed to compute a 2D EoS in the (T, µB) plane. It was constructed through a T -expansion scheme (TExS), based on a resummation of the Taylor expansion, and is trusted up to densities around µB/T = 3.5. We present here the new 4D-TExS EoS, a generalization of the TExS to all 3 chemical potentials, expected to offer a larger coverage than the 4D Taylor expansion EoS. After explaining the basics of the T -Expansion Scheme and how it is generalized to multiple dimensions, we will present results for thermodynamic observables as functions of temperature and both finite baryon and strangeness chemical potentials.https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06002.pdf |
| spellingShingle | Jahan Johannes Abuali Ahmed Borsányi Szabolcs Kahangirwe Micheal Parotto Paolo Pásztor Attila Ratti Claudia Shah Hitansh Trabulsi Seth A. 4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage EPJ Web of Conferences |
| title | 4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage |
| title_full | 4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage |
| title_fullStr | 4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage |
| title_full_unstemmed | 4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage |
| title_short | 4D-TExS: A new 4D lattice-QCD equation of state with extended density coverage |
| title_sort | 4d texs a new 4d lattice qcd equation of state with extended density coverage |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2025/01/epjconf_sqm2024_06002.pdf |
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