TY  - JOUR
AU  - Borsanyi, Szabolcs
AU  - Fodor, Zoltan
AU  - Guenther, Jana N.
AU  - Kara, Ruben
AU  - Katz, Sandor D.
AU  - Parotto, Paolo
AU  - Pasztor, Attila
AU  - Ratti, Claudia
AU  - Szabó, Kálman K.
TI  - QCD Crossover at Finite Chemical Potential from Lattice Simulations
JO  - Physical review letters
VL  - 125
IS  - 5
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2021-00058
SP  - 052001
PY  - 2020
AB  - We provide the most accurate results for the QCD transition line so far. We optimize the definition of the crossover temperature Tc, allowing for its very precise determination, and extrapolate from imaginary chemical potential up to real μB≈300  MeV. The definition of Tc adopted in this work is based on the observation that the chiral susceptibility as a function of the condensate is an almost universal curve at zero and imaginary μB. We obtain the parameters κ2=0.0153(18) and κ4=0.00032(67) as a continuum extrapolation based on Nt=10, 12, 16 lattices with physical quark masses. We also extrapolate the peak value of the chiral susceptibility and the width of the chiral transition along the crossover line. In fact, both of these are consistent with a constant function of μB. We see no sign of criticality in the explored range.
LB  - PUB:(DE-HGF)16
C6  - 32794881
UR  - <Go to ISI:>//WOS:000553250400006
DO  - DOI:10.1103/PhysRevLett.125.052001
UR  - https://juser.fz-juelich.de/record/889133
ER  -