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New approach to lattice QCD at finite density: reweighting without an overlap problem
Attila Pasztor, Szabolcs Borsanyi, Zoltan Fodor +5
Approaches to finite baryon density lattice QCD usually suffer from uncontrolled systematic uncertainties in addition to the well-known sign problem. We test a method - sign reweig…
Quantifying corrections to the hadron resonance gas with lattice QCD
Rene Bellwied, Szabolcs Borsányi, Zoltán Fodor +7
The hadron resonance gas (HRG) model and its extensions are often used to describe the hadronic phase of strongly interacting matter. In our work we use lattice-QCD simulations wit…
Equation of state of QCD at finite chemical potential from an alternative expansion scheme
Paolo Parotto, Szabolcs Borsanyi, Zoltan Fodor +6
The equation of state of Quantum Chromodynamics (QCD) at finite density is currently known only in a limited range in the baryon chemical potential . This is due to fundamenta…
Lattice simulations of the QCD chiral transition at real baryon density
Szabolcs Borsanyi, Zoltan Fodor, Matteo Giordano +4
State-of-the-art lattice QCD studies of hot and dense strongly interacting matter currently rely on extrapolation from zero or imaginary chemical potentials. The ill-posedness of n…
Lattice QCD equation of state at finite chemical potential from an alternative expansion scheme
S. Borsanyi, Z. Fodor, J. N. Guenther +6
Taylor expansion of the equation of state of QCD suffers from shortcomings at chemical potentials . First, one faces difficulties inherent in performing such an…
Corrections to the hadron resonance gas from lattice QCD and their effect on fluctuation-ratios at finite density
Rene Bellwied, Szabolcs Borsanyi, Zoltan Fodor +7
The hadron resonance gas (HRG) model is often believed to correctly describe the confined phase of QCD. This assumption is the basis of many phenomenological works on QCD thermodyn…