2015/11/10 by Francesca Cuteri, Christopher Czaban, Cuteri, Francesca +7
Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.48550/arxiv.1511.03105
7 pages, 8 figures, Proceedings of the 33rd International Symposium on Lattice Field Theory, 14-18 July 2015, Kobe, Japan
openalex publication_date 2015/11/10 · arxiv created 2015/12/17 · arxiv updated 2015/12/18 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
The finite temperature chiral and deconfinement phase transitions at zero density for light and heavy quarks, respectively, have analytic continuations to imaginary chemical potential. At some critical imaginary chemical potential, they meet the Roberge-Weiss transition between adjacent Z(3) sectors. For light and heavy quarks, where the chiral and deconfinement transitions are first order, the transition lines meet in a triple point. For intermediate masses chiral or deconfinement transitions are crossover and the Roberge-Weiss transition ends in a second order point. At the boundary between these regimes the junction is a tricritical point, as shown in studies with Nf=2,3 flavors of staggered and Wilson quarks on Nτ=4 lattices. Employing finite size scaling we investigate the nature of this point as a function of quark mass for Nf=2 flavors of Wilson fermions with a temporal lattice extent of Nτ=6. In particular we are interested in the change of the location of tricritical points compared to our ealier study on Nτ=4.