Higher order quark-mesonic scattering processes and the phase structure of QCD

Abstract

We study the impact of higher order quark-meson scattering processes on the chiral phase structure of two-flavour QCD at finite temperature and quark density. Thermal, density and quantum fluctuations are included within a functional renormalisation group approach to the quark-meson model. We present results on the chiral phase boundary, the critical endpoint, and the curvature of the phase transition line at vanishing density.

20 pages, 14 figures. v2: journal version

References in corpus (12)

• Exact evolution equation for the effective potential
• The Phase Structure of the Polyakov--Quark-Meson Model
• The phase structure of the Polyakov--quark-meson model beyond mean field
• Propagators and phase structure of Nf=2 and Nf=2+1 QCD
• Renormalization Group Approach towards the QCD Phase Diagram
• Improved Polyakov-loop potential for effective models from functional calculations
• Exact flow equation for composite operators
• The QCD Phase Boundary from Quark-Gluon Dynamics
• The QCD phase diagram: Results and challenges
• Ultracold atoms and the Functional Renormalization Group
• Lattice QCD at finite temperature and density
• Universal Aspects of QCD-like Theories

Cited by in corpus (73)

• The nonperturbative functional renormalization group and its applications
• The QCD phase structure at finite temperature and density
• QCD at finite temperature and chemical potential from Dyson-Schwinger equations
• Chiral symmetry breaking in continuum QCD
• Non-perturbative quark, gluon and meson correlators of unquenched QCD
• From Quarks and Gluons to Hadrons: Chiral Symmetry Breaking in Dynamical QCD
• Curvature of the pseudocritical line in QCD: Taylor expansion matches analytic continuation
• Real time correlation functions and the functional renormalisation group
• The Vacuum Structure of Vector Mesons in QCD
• Hyper-order baryon number fluctuations at finite temperature and density
• Baryon number fluctuations at finite temperature and density
• QCD at finite temperature and density within the fRG approach: An overview
• Fluctuation-induced modifications of the phase structure in (2+1)-flavor QCD
• In-Medium Spectral Functions of Vector- and Axial-Vector Mesons from the Functional Renormalization Group
• Baryon effects on the location of QCD's critical end point
• On the relevance of matter and glue dynamics for baryon number fluctuations
• Chiral Susceptibility in (2+1)-flavour QCD
• Towards quantitative precision in the chiral crossover: masses and fluctuation scales
• Fierz-complete NJL model study III: Emergence from quark-gluon dynamics
• Ising and Gross-Neveu model in next-to-leading order
• A Refined Holographic QCD Model and QCD Phase Structure
• Fermion-induced quantum criticality in two-dimensional Dirac semimetals: Non-perturbative flow equations, fixed points and critical exponents
• Finite temperature spectral functions in the O(N)-model
• Multi-meson Yukawa interactions at criticality
• Universal location of the Yang-Lee edge singularity in O(N) theories
• Mass sensitivity of the three-flavor chiral phase transition
• Probing Baryogenesis through the Higgs Self-Coupling
• Nonperturbative quark matter equations of state with vector interactions
• The Asymptotically Safe Standard Model: From quantum gravity to dynamical chiral symmetry breaking
• Fermion-induced quantum criticality with two length scales in Dirac systems
• Phase structure of spin-imbalanced unitary Fermi gases
• Modeling Finite-Volume Effects and Chiral Symmetry Breaking in Two-Flavor QCD Thermodynamics
• Correlating the skewness and kurtosis of baryon number distributions
• Bound state properties from the Functional Renormalisation Group
• Shocks and quark-meson scatterings at large density
• Impact of generalized Yukawa interactions on the lower Higgs mass bound
• Numerical fluid dynamics for FRG flow equations: Zero-dimensional QFTs as numerical test cases. I. The $O(N)$ model
• Self-consistent Spectral Functions in the $O(N)$ Model from the FRG
• Strangeness Neutrality and QCD Thermodynamics
• Meson Spectral Functions at Finite Temperature and Isospin Density with Functional Renormalization Group
• Phase structure of NJL model with weak renormalization group
• Analytical structure of the equation of state at finite density: Resummation versus expansion in a low energy model
• Fermionic spectral functions with the Functional Renormalization Group
• The chiral phase transition and the axial anomaly
• Baryon number fluctuations in the 2+1 flavor low energy effective model
• Universal location of Yang-Lee edge singularity in classic O(N) universality classes
• Numerical fluid dynamics for FRG flow equations: Zero-dimensional QFTs as numerical test cases. III. Shock and rarefaction waves in RG flows reveal limitations of the $N\to \infty$ limit in $O(N)$-type models
• Scaling relations and multicritical phenomena from Functional Renormalization
• Mesonic dynamics and QCD phase transition
• Dynamical generation of low-energy couplings from quark-meson fluctuations
• Critical behaviors of the $O(4)$ and $Z(2)$ symmetries in the QCD phase diagram
• Sarma phase in relativistic and non-relativistic systems
• Strong-interaction matter under extreme conditions from chiral quark models with nonlocal separable interactions
• Critical Behavior and Dimension Crossover of Pion Superfluidity
• Baryon number probability distribution at finite temperature
• Higgs stability-bound and fermionic dark matter
• Four-fermion interactions and the chiral symmetry breaking in an external magnetic field
• Phenomenology of $J^{PC}=3^{--}$ tensor mesons
• Asymptotic freedom in $Z_2$-Yukawa-QCD models
• Scheme dependence of asymptotically free solutions
• Scalar mass stability bound in a simple Yukawa-theory from renormalisation group equations
• Exact solutions and residual regulator dependence in functional renormalisation group flows
• Functional renormalization group study of neutral and charged pion under magnetic fields in the quark-meson model
• Fluctuation-induced higher-derivative couplings and infrared dynamics of the Quark-Meson-Diquark Model
• Fermion spectral function in hot strongly interacting matter from the functional renormalization group
• Relativistic Mott transitions and finite-temperature effects of quantum criticality in Dirac semimetals
• Harmonic expansion of the effective potential in Functional Renormalization Group at finite chemical potential
• Effects of strangeness on the chiral pseudocritical line
• Field dependence of the Yukawa coupling in the three flavor quark-meson model
• Chiral criticality and glue dynamics
• Vector interaction bounds in NJL-like models from LQCD estimated curvature of the chiral crossover line
• Dissecting the moat regime at low energies I: Renormalization and the phase structure
• Detecting inhomogeneous chiral condensation from the bosonic two-point function in the $(1+1)$-dimensional Gross-Neveu model in the mean-field approximation