Back to Search
Start Over
Universal scaling and the asymptotic behaviour of Fourier coefficients of the baryon-number density in QCD
- Source :
- PoS LATTICE2023 (2024) 167
- Publication Year :
- 2024
-
Abstract
- We discuss the scaling of the Yang-Lee singularity (YLs) and show how the universal scaling can be used to locate phase transitions in QCD. We describe two complementary methods to extract the location of the Yang-Lee singularity from lattice QCD data of the baryon-number density and higher order cumulants of the baryon number, obtained at imaginary chemical potential. The first method (multi-point Pad\'e resummation) is used to determine the Roberge-Weiss phase transition temperature. Our continuum extrapolated result is $T_{RW}=211.1\pm3.1$ MeV. The second method is based on the asymptotic behaviour of the Fourier coefficients of the baryon-number density. We discuss the derivation of a fitting function and demonstrate that the procedure can successfully locate the YLs in the Quark Meson model.<br />Comment: 7 pages, 4figures, Proceedings of the 40th International Symposium on Lattice Field Theory (Lattice 2023), July 31st - August 4th, 2023, Fermilab, Batavia, Illinois, USA
- Subjects :
- High Energy Physics - Lattice
Subjects
Details
- Database :
- arXiv
- Journal :
- PoS LATTICE2023 (2024) 167
- Publication Type :
- Report
- Accession number :
- edsarx.2401.07790
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.22323/1.453.0167