Progress on the QCD deconfinement critical point for Nf=2 staggered fermions
- The global center symmetry of quenched QCD at zero baryonic chemical potential is broken spontaneously at a critical temperature Tc leading to a first-order phase transition. Including heavy dynamical quarks breaks the center symmetry explicitly and weakens the first-order phase transition for decreasing quark masses until it turns into a smooth crossover at a Z(2)-critical point. We investigate the Z(2)-critical quark mass value towards the continuum limit for Nf=2 flavors using lattice QCD in the staggered formulation. As part of a continued study, we present results from Monte-Carlo simulations on Nτ=8,10 lattices. Several aspect ratios and quark mass values were simulated in order to obtain the critical mass from a fit of the Polyakov loop to a kurtosis finite size scaling formula. Moreover, the possibility to develop a Ginzburg-Landau effective theory around the Z(2)-critical point is explored.
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| Author: | Reinhold KaiserORCiD, Owe PhilipsenORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-716902 |
| DOI: | https://doi.org/10.48550/arXiv.2212.14461 |
| ArXiv Id: | http://arxiv.org/abs/2212.14461 |
| Document Type: | Conference Proceeding |
| Language: | English |
| Date of Publication (online): | 2022/12/29 |
| Date of first Publication: | 2022/12/29 |
| 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 |
| HeBIS-PPN: | 504853066 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - CC BY-NC - Namensnennung - Nicht kommerziell 4.0 International |
