What favors and disfavors the critical point of QCD?

Fukushima, Kenji

doi:10.2478/s11534-012-0067-2

Journal

Open Physics

2012 | 10 | 6 | 1318-1321

Article title

What favors and disfavors the critical point of QCD?

Authors

Kenji Fukushima

Content

Full texts:

http://www.degruyter.com/view/j/phys.2012.10.issue-6/s11534-012-0067-2/s11534-012-0067-2.pdf [remote]

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Abstracts

Results from chiral effective models suggest the existence of the so-called QCD critical point. These model predictions are highly dependent on the model setup and there is no universal argument for its existence and location. I discuss why a first-order phase transition is generally favored in models at low temperature T and high chemical potential µ, which will explain why the model results are unreliable about the critical point. I propose a useful way to reinterpret the model results as a liquid-gas-type phase transition like that of nuclear matter. This picture provides us with a fairly model-independent description of the QCD critical point not relying on detailed phase structures.

Keywords

chiral symmetry quark-gluon plasma phase transition critical point

Publisher

Journal

Open Physics

Year

2012

Volume

Issue

Pages

1318-1321

Physical description

Dates

published

1 - 12 - 2012

online

4 - 12 - 2012

Contributors

author

Kenji Fukushima

Department of Physics, Keio University, Kanagawa, 223-8522, Japan, fuku@rk.phys.keio-u.ac.jp

References

[1] T. Hatsuda, T. Kunihiro, Phys. Rept. 247, 221 (1994) http://dx.doi.org/10.1016/0370-1573(94)90022-1[Crossref]
[2] K. Fukushima, T. Hatsuda, Rept. Prog. Phys. 74, 014001 (2011) http://dx.doi.org/10.1088/0034-4885/74/1/014001[Crossref]
[3] M. Asakawa, K. Yazaki, Nucl. Phys. A 504, 668 (1989) http://dx.doi.org/10.1016/0375-9474(89)90002-X[Crossref]
[4] S. Ejiri et al., Phys. Rev. D 80, 094505 (2009) http://dx.doi.org/10.1103/PhysRevD.80.094505[Crossref]
[5] J.-W. Chen, K. Fukushima, H. Kohyama, K. Ohnishi, U. Raha, Phys. Rev. D 80, 054012 (2009) http://dx.doi.org/10.1103/PhysRevD.80.054012[Crossref]
[6] J.-W. Chen, K. Fukushima, H. Kohyama, K. Ohnishi, U. Raha, Phys. Rev. D 81, 071501 (2010) http://dx.doi.org/10.1103/PhysRevD.81.071501[Crossref]
[7] K. Fukushima, arXiv:1204.0594 [hep-ph]
[8] L. McLerran, R. D. Pisarski, Nucl. Phys. A 796, 83 (2007) http://dx.doi.org/10.1016/j.nuclphysa.2007.08.013[Crossref]

Document Type

Publication order reference

Identifiers

DOI

10.2478/s11534-012-0067-2

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11534-012-0067-2