QCD Crossover at Finite Chemical Potential from Lattice Simulations - INSPIRE

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QCD Crossover at Finite Chemical Potential from Lattice Simulations

Szabolcs Borsanyi
(
- Wuppertal U.
)
,
Zoltan Fodor
(
- Wuppertal U. and
- Eotvos U. and
- IAS, Julich and
- UC, San Diego
)
,
Jana N. Guenther
(
- Wuppertal U. and
- Regensburg U.
)
,
Ruben Kara
(
- Wuppertal U.
)
,
Sandor D. Katz
(
- Eotvos U.
)

Feb 7, 2020

6 pages

Published in:

Phys.Rev.Lett. 125 (2020) 5, 052001

Published: Jul 30, 2020

e-Print:

2002.02821 [hep-lat]

DOI:

10.1103/PhysRevLett.125.052001

View in:

ADS Abstract Service

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Abstract: (APS)

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.

Note:

5 pages main text + 7 pages supplementary material

Elementary Particles and Fields
susceptibility: chiral
potential: chemical
transition: chiral
quark: mass
quantum chromodynamics
condensation
critical phenomena: temperature

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