Journal
PHYSICAL REVIEW D
Volume 102, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.102.056010
Keywords
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Funding
- DFG [RE 4174/1-1, BR 4005/4-1, EXC-2181/1390900948]
- Helmholtz International Center for the Facility for Antiproton and Ion Research (HIC for FAIR) within the LOEWE program of the State of Hesse
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [315477589-TRR 211]
- National Natural Science Foundation of China [11775041]
- ExtreMe Matter Institute. (EMMI)
- BMBF [05P18VHFCA]
- DFG Collaborative Research Centre SFB 1225 (ISOQUANT)
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We calculate chiral susceptibilities in (2 + 1)-flavor QCD for different masses of the light quarks using the functional renormalization group (fRG) approach to first principles QCD. We follow the evolution of the chiral susceptibilities with decreasing masses as obtained from both the light-quark and the reduced quark condensate. The latter compares very well with recent results from the HotQCD Collaboration for pion masses m(pi) greater than or similar to 100 MeV. For smaller pion masses, fRG and lattice results are still consistent. In particular, the estimates for the chiral critical temperature are in very good agreement. We close by discussing different extrapolations to the chiral limit.
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