The chiral phase transition at non-zero imaginary baryon chemical potential for different numbers of quark flavours

  • The so-called Columbia plot summarises the order of the QCD thermal transition as a function of the number of quark flavours and their masses. Recently, it was demonstrated that the first-order chiral transition region, as seen for Nf∈[3,6] on coarse lattices, exhibits tricritical scaling while extrapolating to zero on sufficiently fine lattices. Here we extend these studies to imaginary baryon chemical potential. A similar shrinking of the first-order region is observed with decreasing lattice spacing, which again appears compatible with a tricritical extrapolation to zero.

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Author:Alfredo D'Ambrosio, Owe PhilipsenORCiDGND, Reinhold KaiserORCiD
ArXiv Id:
Document Type:Conference Proceeding
Date of Publication (online):2022/12/07
Date of first Publication:2022/12/07
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:International Symposium on Lattice Field Theory (39. : 2022 : Bonn)
Release Date:2023/01/24
Page Number:9
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung-Keine kommerzielle Nutzung-Weitergabe unter gleichen Bedingungen 4.0