The equation of state of QCD at finite chemical potential

Abstract

We obtain the baryon number density, n, and the excess contribution to the pressure, Delta P, at finite chemical potential, mu_B, and temperature, T, by resumming the Taylor series expansion in a lattice computation with lattice spacing of 1/(4T) and two flavours of quarks at three different quark masses. The method proceeds by giving a critical mu_B and limits on the critical exponent, and permits reliable estimations of the errors in resummed quantities. We find that n and Delta P are insensitive to the quark mass. We also report the bulk isothermal compressibility, kappa, over a range of T and mu_B.

References in corpus (5)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• The QCD equation of state with dynamical quarks
• The QCD transition temperature: results with physical masses in the continuum limit II.
• QCD at finite chemical potential with six time slices
• Dynamic universality class of the QCD critical point

Cited by in corpus (9)

• QCD phase transitions via a refined truncation of Dyson-Schwinger equations
• Quark Number Fluctuations at Finite Temperature and Finite Chemical Potential via the Dyson-Schwinger Equation Approach
• Interface Effect in QCD Phase Transitions via Dyson-Schwinger Equation Approach
• Angular Momentum in QGP Holography
• Lattice QCD Equation of State for Nonvanishing Chemical Potential by Resumming Taylor Expansion
• Phase structure and critical phenomena in 2-flavor QCD by holography
• Recent lattice QCD results and phase diagram of strongly interacting matter
• Statistical tweaks and flow scale from masses
• A generalized definition of the isothermal compressibility in (2+1)-flavor QCD