The QCD Phase Diagram from Chiral Approaches

Sasaki, Chihiro

doi:10.1016/j.nuclphysa.2009.09.054

Cited by 9 publications

(11 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following Ref. [21] we adopt the N c dependences in the model parameters as 1) and the meson masses and the parameterμ do not carry N c dependences. Inserting these scaling factors into the gap equations, one can perform thermodynamical calculations.…”

Section: Phase Structure For Large Ncmentioning

confidence: 99%

Thermodynamics of dense hadronic matter in a parity doublet model

Sasaki

Mishustin

2010

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

We study thermodynamics of nuclear matter in a two-flavored parity doublet model within the mean field approximation. Parameters of the model are chosen to reproduce correctly the properties of the nuclear ground state. The model predicts two phase transitions in nuclear matter, a liquid-gas phase transition at normal nuclear density and a chiral transition at higher density. At finite temperature the pion decay constant exhibits a considerable reduction at intermediate values of chemical potential, which is traced back to the presence of the liquid-gas transition, and approaches zero at higher chemical potential associated with the chiral symmetry restoration. A "transition" from meson-rich to baryon-rich matter is also discussed.Comment: 7 pages, 4 figure

show abstract

Section: Phase Structure For Large Ncmentioning

confidence: 99%

Thermodynamics of dense hadronic matter in a parity doublet model

Sasaki

Mishustin

2010

Phys. Rev. C

Self Cite

View full text Add to dashboard Cite

show abstract

“…Finite baryon density QCD has piqued huge interest in nuclear physics, high energy physics and even astrophysics. It is excepted that QCD has a very rich phase structure in (T, µ) parameter space [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], and there are several heavy-ion collision experiments such as NICA, FAIR, RHIC (BES II), J-PARC, HIAF that will elucidate the properties of dense QCD matter in the near future. Especially awaited is the NICA (Nuclotron-based Ion Collider fAility) complex that is now under construction at the Joint Institute for Nuclear Research (Dubna, Russia) [19].…”

Section: Introductionmentioning

confidence: 99%

Dense Baryonic Matter and Applications of QCD Phase Diagram Dualities

2020

View full text Add to dashboard Cite

Recently it has been found that quantum chromodynamics (QCD) phase diagram possesses a duality between chiral symmetry breaking and pion condensation. For the first time this was revealed in the QCD motivated toy model. Then it was demonstrated in effective models as well and new additional dualities being found. We briefly recap the main features of this story and then discuss its applications as a tool to explore the QCD phase structure. The most appealing application is the possibility of getting the results on the QCD phase diagram at large baryon density. Taking the idea from large 1/Nc universalities it was argued that the scenario of circumventing the sign problem with the help of dualities seems plausible. It is also discussed that there is a persistent problem about whether there should be catalysis or anti-catalysis of chiral symmetry breaking by chiral imbalance. One can probably say that the issue is settled after lattice results (first principle approach), where the catalysis was observed. But they used an unphysically large pion mass so it is still interesting to get additional indications that this is the case. It is shown just by the duality property that there exists catalysis of chiral symmetry breaking. So, having in mind our results and the earlier lattice simulations, one can probably claim that this issue is settled. It is demonstrated that the duality can be used to obtain new results. As an example, it is showcased how the phase structure of dense quark matter with chiral imbalance (with possibility of inhomogeneous phases) can be obtained from the knowledge of a QCD phase diagram with isopin asymmetry.

show abstract

“…1 The term "holonomy" refers here to the group element corresponding to a closed Wilson line, prior to taking the trace. 2 In fact, some conjectured QCD phase diagrams do contain a second end point (see, e.g., [7,8]), but this is based on the idea of quark hadron continuity at N f ¼ 3 flavors [9], and it is not clear that a similar argument would apply in our case, with unrooted staggered fermions. one time slice, say at t ¼ 0, on the periodic lattice.…”

Section: Relative Weightsmentioning

confidence: 82%

Finite-density transition line for QCD with 695 MeV dynamical fermions

Greensite

Höllwieser

2018

Phys. Rev. D

View full text Add to dashboard Cite

We apply the relative weights method to SU(3) gauge theory with staggered fermions of mass 695 MeV at a set of temperatures in the range 151 ≤ T ≤ 267 MeV, to obtain an effective Polyakov line action at each temperature. We then apply a mean field method to search for phase transitions in the effective theory at finite densities. The result is a transition line in the plane of temperature and chemical potential, with an end point at high temperature, as expected, but also a second end point at a lower temperature. We cannot rule out the possibilities that a transition line reappears at temperatures lower than the range investigated, or that the second end point is absent for light quarks.

show abstract

The QCD Phase Diagram from Chiral Approaches

Cited by 9 publications

References 73 publications

Thermodynamics of dense hadronic matter in a parity doublet model

Thermodynamics of dense hadronic matter in a parity doublet model

Dense Baryonic Matter and Applications of QCD Phase Diagram Dualities

Finite-density transition line for QCD with 695 MeV dynamical fermions

Contact Info

Product

Resources

About