Phase diagram of hot QCD in an external magnetic field: Possible splitting of deconfinement and chiral transitions
By A. Mizher, M. Chernodub, E. Fraga. 2010
165 citations recorded by the source corpus.
The structure of the phase diagram for strong interactions becomes richer in the presence of a magnetic background, which enters as a new control parameter for the thermodynamics. Motivated by the relevance of this physical setting for current and future high-energy heavy-ion collision experiments and for the cosmological QCD transitions, we use the linear sigma model coupled to quarks and to Polyakov loops as an effective theory to investigate how the chiral and the deconfining transitions are affected, and present a general picture for the temperature--magnetic field phase diagram. We compute and discuss each contribution to the effective potential for the approximate order parameters, and uncover new phenomena such as the paramagnetically induced breaking of global ${\mathbb{Z}}_{3}$ symmetry, and possible splitting of deconfinement and chiral transitions in a strong magnetic field.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/81f69903055b0576ed9bea96337ac7061bbc95b5
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In Nuclear and High Energy Physics
- Zoltán Fodor
- Sándor D. Katz
- Kálmán K. Szabó
- Gergely Endrodi
- C. Fischer
- S. Krieg
- F. Bruckmann
- Gunnar S. Bali
Citations in the corpus
- The QCD phase diagram for external magnetic fields (2011, methodology): “A decrease in Tc was also observed in the linear sigma model if the quark vacuum contributions are neglected [13] and in the Sakai-Sugimoto model with nonzero chemical potential [25].”
- Inverse magnetic catalysis in dense holographic matter (2010, methodology): “Such a splitting has been observed in a linear sigma model coupled to quarks and Polyakov loop [51] and an NJL model with Polyakov loop (PNJL) [52] (see however ref.”
- Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions (2013, methodology): “In addition, the QCD phase diagram is modified by magnetic field as has been extensively studied using model calculations [ 89– 110 Profound influence of magnetic field on properties of QGP is truly remarkable.”