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The Chiral Phase Transition in three-flavor QCD from Lattice QCD

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arxiv 2111.12599 v3 pith:EF2SZQ4W submitted 2021-11-24 hep-lat

Lorenzo Dini , Prasad Hegde , Frithjof Karsch , Anirban Lahiri , Christian Schmidt , Sipaz Sharma This is my paper · ORCID
classification hep-lat
keywords chiralphasetransitioncorrespondingflavorlatticelesssimmasses
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We analyze the pseudo-critical behavior of three-flavor QCD using highly improved staggered quarks (HISQ) on lattices with temporal extent $N_\tau =8$ and for quark masses corresponding to a pseudoscalar Goldstone mass in the range $80 ~ {\rm MeV} ~ \lesssim ~ m_\pi ~ \lesssim ~ 140 ~ {\rm MeV}$. Our findings are consistent with the occurrence of a second order chiral phase transition at vanishing values of the quark masses. The chiral phase transition temperature at this finite value of the lattice spacing is determined to be $T_c = 98_{-6}^{+3}~{\rm MeV}$. A comparison with a corresponding analysis performed in (2+1)-flavor QCD suggests that the continuum limit extrapolated chiral phase transition temperature in 3-flavor QCD will turn out to be below $90 ~ {\rm MeV}$.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. On the nature of the QCD chiral phase transition with imaginary chemical potential

    hep-lat 2025-12 conditional novelty 5.0 of 10

    First-order chiral regions observed on coarse staggered lattices disappear in tricritical points as the lattice spacing decreases at imaginary chemical potential, implying a second-order continuum transition.

  2. Quark mass dependence of a QCD critical point and structure of the Columbia plot

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    In a truncated Dyson-Schwinger setup, the QCD critical point moves to higher temperature and lower baryon chemical potential as light quark masses decrease toward the chiral limit.

  3. The order of the chiral phase transition in massless many-flavour lattice QCD

    hep-lat 2025-01 conditional novelty 5.0 of 10

    Lattice QCD simulations with up to seven flavors indicate that the first-order chiral transition seen on coarse lattices is a cutoff artifact, so the continuum chiral transition is second-order for all flavors up to t...

  4. The QCD phase diagram, universal scaling, and Lee-Yang zeros

    hep-lat 2025-01 conditional novelty 2.0 of 10

    Scaling fits give a chiral transition temperature around 144 MeV at one lattice spacing and a not yet continuum extrapolated QCD critical endpoint near T=105 MeV, mu_B=422 MeV.

  5. Lattice gauge ensembles and data management

    hep-lat 2025-02 conditional novelty 1.0 of 10

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