QCD phase structure from functional methods
Fei Gao,Jan M. Pawlowski +1 more
TL;DR: Cyrol et al. as mentioned in this paper computed QCD correlation functions within a generalized functional approach that combines Dyson-Schwinger equations (DSE) and the functional renormalization group (fRG).
read more
Abstract: We discuss the QCD phase structure at finite temperature and chemical potential for 2-flavor and $2+1$-flavor QCD. The results are achieved by computing QCD correlation functions within a generalized functional approach that combines Dyson-Schwinger equations (DSE) and the functional renormalization group (fRG). In this setup fRG precision data from [A. K. Cyrol, M. Mitter, J. M. Pawlowski, and N. Strodthoff, Phys. Rev. D 97, 054006 (2018).] for the vacuum quark-gluon vertex and gluon propagator of 2-flavor QCD used as input, and the respective DSEs are expanded about this input. While the vacuum results for other correlation functions serve as a self-consistency check for functional approaches, the results at finite temperature and density are computed, for the first time, without the need of phenomenological infrared parameters.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
The nonperturbative functional renormalization group and its applications
N. Dupuis,Léonie Canet,Astrid Eichhorn,Astrid Eichhorn,W. Metzner,Jan M. Pawlowski,Matthieu Tissier,Nicolás Wschebor +7 more
TL;DR: The nonperturbative functional renormalization-group (FRG) approach as discussed by the authors is a modern implementation of Wilson's RG, which allows one to set up nonperturative approximation schemes that go beyond the standard perturbative RG approaches.
351
The nonperturbative functional renormalization group and its applications
N. Dupuis,Léonie Canet,Astrid Eichhorn,Astrid Eichhorn,W. Metzner,Jan M. Pawlowski,Matthieu Tissier,Nicolás Wschebor +7 more
TL;DR: The nonperturbative functional renormalization-group (FRG) approach as discussed by the authors is a modern implementation of Wilson's RG, which allows one to set up nonperturative approximation schemes that go beyond the standard perturbative RG approaches.
267
Insights into the emergence of mass from studies of pion and kaon structure
TL;DR: There are two mass generating mechanisms in the standard model of particle physics (SM), one related to the Higgs boson and fairly well understood, and the other embedded in quantum chromodynamics (QCD), the SM's strong interaction piece; and although responsible for emergence of the roughly 1 GeV mass scale that characterises the proton and hence all observable matter, the source and impacts of this emergent hadronic mass remain puzzling as mentioned in this paper.
133
Insights into the Emergence of Mass from Studies of Pion and Kaon Structure
TL;DR: There are two mass generating mechanisms in the standard model of particle physics (SM) as mentioned in this paper, one related to the Higgs boson and fairly well understood, and the other embedded in quantum chromodynamics (QCD), the SM's strong interaction piece.
121
Constraining the onset density of the hadron-quark phase transition with gravitational-wave observations
Sebastian Blacker,Niels-Uwe F. Bastian,Andreas Bauswein,David Blaschke,David Blaschke,David Blaschke,Tobias Fischer,Micaela Oertel,Theodoros Soultanis,Theodoros Soultanis,Stefan Typel +10 more
TL;DR: In this article, the authors study the possible occurrence of the hadron-quark phase transition (PT) during the merging of neutron star binaries by hydrodynamical simulations employing a set of temperature dependent hybrid equations of state (EoSs).
References
The QCD phase diagram for small densities from imaginary chemical potential
TL;DR: In this article, the authors present results on the QCD phase diagram for μ B ⩽ πT with an imaginary chemical potential μ = iμ I for which the fermion determinant is positive.
872
Aspects of the functional renormalisation group
TL;DR: In this article, structural aspects of the functional renormalisation group are discussed, and a simple equation for the flow of these relations is provided, and the construction and analysis of truncation schemes in view of practical optimisation.
853
Is there still any Tc mystery in lattice QCD? Results with physical masses in the continuum limit III
Szabolcs Borsanyi,Zoltan Fodor,Zoltan Fodor,Zoltan Fodor,Christian Hoelbling,Sandor D. Katz,Stefan Krieg,Stefan Krieg,Claudia Ratti,Kalman K. Szabo +9 more
TL;DR: In this paper, the authors extended their previous two studies (Phys. Lett. B643 (2006) 46, JHEP 0906:088 (2009)) by choosing even ner lattices (Nt=16) and working again with physical quark masses.
QCD thermal phase transition in the presence of a small chemical potential
Chris Allton,Chris Allton,Shinji Ejiri,Simon Hands,Simon Hands,Olaf Kaczmarek,Frithjof Karsch,Frithjof Karsch,Edwin Laermann,Christian Schmidt,Luigi Scorzato +10 more
TL;DR: In this paper, the thermal properties of QCD with a small quark chemical potential were investigated using a 16(3)x4 lattice and the leading order Taylor expansion of the pseudocritical point about mu=0.
717
Related Papers (5)
Alexei Bazavov,Tanmoy Bhattacharya,M. Cheng,Carleton DeTar,Heng-Tong Ding,Steven Gottlieb,Rajan Gupta,P. Hegde,Urs M. Heller,Frithjof Karsch,Frithjof Karsch,Edwin Laermann,Ludmila Levkova,Swagata Mukherjee,Peter Petreczky,Christian Schmidt,Christian Schmidt,R. A. Soltz,W. Soeldner,Robert L. Sugar,D. Toussaint,Wolfgang Unger,Pavlos Vranas +22 more