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.

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Cited by in corpus (15)

• Fluctuations of conserved charges in relativistic heavy ion collisions: An introduction
• 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
• Quark number susceptibilities and equation of state at finite chemical potential in staggered QCD with Nt=8
• 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
• Rapidity window dependences of higher order cumulants and diffusion master equation
• Reparametrizing the Polyakov$-$Nambu$-$Jona-Lasinio model
• Recent lattice QCD results and phase diagram of strongly interacting matter
• Nonperturbative quark-gluon thermodynamics at finite density
• Statistical tweaks and flow scale from masses
• A short introduction to heavy-ion physics
• A generalized definition of the isothermal compressibility in (2+1)-flavor QCD