QCD THERMODYNAMICS AT ZERO AND NON-ZERO DENSITY.

Conference · Tue Jul 03 00:00:00 EDT 2007

OSTI ID:899616

SCHMIDT, C

We present recent results on thermodynamics of QCD with almost physical light quark masses and a physical strange quark mass value. These calculations have been performed with an improved staggered action especially designed for finite temperature lattice QCD. In detail we present a calculation of the transition temperature, using a combined chiral and continuum extrapolation. Furthermore we present preliminary results on the interaction measure and energy density at almost realistic quark masses. Finally we discuss the response of the pressure to a finite quark chemical potential. Within the Taylor expansion formalism we calculate quark number susceptibilities and leading order corrections to finite chemical potential. This is particularly useful for mapping out the critical region in the QCD phase diagram.

• Research Organization: Brookhaven National Lab. (BNL), Upton, NY (United States)
• Sponsoring Organization: DOE/SC
• DOE Contract Number: DE-AC02-98CH10886
• OSTI ID: 899616
• Report Number(s): BNL-77489-2007-CP; R&D Project: PO-22; YN0100000; TRN: US0702022
• Resource Relation: Conference: THE CRITICAL POINT AND ONSET OF DECONFINEMENT INTERNATIONAL WORKSHOP; GALILEO GALILEI INSTITUTE, FLORENCE, ITALY; 20060703 through 20060707
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ENERGY DENSITY
EXTRAPOLATION
PHASE DIAGRAMS
QUANTUM CHROMODYNAMICS
QUARKS
THERMODYNAMICS
TRANSITION TEMPERATURE