TY - JOUR

T1 - Nuclear thermodynamics from chiral low-momentum interactions

AU - Wellenhofer, Corbinian

AU - Holt, Jeremy W.

AU - Kaiser, Norbert

AU - Weise, Wolfram

PY - 2014/6/30

Y1 - 2014/6/30

N2 - We investigate the thermodynamic equation of state of isospin-symmetric nuclear matter with microscopic nuclear forces derived within the framework of chiral effective field theory. Two- and three-body nuclear interactions constructed at low-resolution scales form the basis for a perturbative calculation of the finite-temperature equation of state. The nuclear force models and many-body methods are benchmarked against bulk properties of isospin-symmetric nuclear matter at zero temperature, which are found to be well reproduced when chiral nuclear interactions constructed at the lowest resolution scales are employed. The calculations are then extended to finite temperatures, where we focus on the liquid-gas phase transition and the associated critical point. The Maxwell construction is applied to construct the physical equation of state, and the value of the critical temperature is determined to be Tc=17.2-19.1 MeV, in good agreement with the value extracted from multifragmentation reactions of heavy ions.

AB - We investigate the thermodynamic equation of state of isospin-symmetric nuclear matter with microscopic nuclear forces derived within the framework of chiral effective field theory. Two- and three-body nuclear interactions constructed at low-resolution scales form the basis for a perturbative calculation of the finite-temperature equation of state. The nuclear force models and many-body methods are benchmarked against bulk properties of isospin-symmetric nuclear matter at zero temperature, which are found to be well reproduced when chiral nuclear interactions constructed at the lowest resolution scales are employed. The calculations are then extended to finite temperatures, where we focus on the liquid-gas phase transition and the associated critical point. The Maxwell construction is applied to construct the physical equation of state, and the value of the critical temperature is determined to be Tc=17.2-19.1 MeV, in good agreement with the value extracted from multifragmentation reactions of heavy ions.

UR - http://www.scopus.com/inward/record.url?scp=84903629188&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.89.064009

DO - 10.1103/PhysRevC.89.064009

M3 - Article

AN - SCOPUS:84903629188

SN - 0556-2813

VL - 89

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 064009

ER -