The European Physical Journal A

, Volume 31, Issue 4, pp 842–844 | Cite as

Phase transitions in quark matter and behaviour of physical observables in the vicinity of the critical end point

  • P. Costa
  • C. A. de Sousa
  • M. C. Ruivo
  • Yu. L. Kalinovsky
QNP 2006


We study the chiral phase transition at finite T and μ B within the framework of the SU(3) Nambu-Jona-Lasinio (NJL) model. The QCD critical end point (CEP) and the critical line at finite temperature and baryonic chemical potential are investigated: the study of physical quantities, such as the baryon number susceptibility near the CEP, will provide complementary information concerning the order of the phase transition. We also analyze the information provided by the study of the critical exponents around the CEP.


11.30.Rd Chiral symmetries 25.75.-q Relativistic heavy-ion collisions 11.10.Wx Finite-temperature field theory 


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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2007

Authors and Affiliations

  • P. Costa
    • 1
    • 2
  • C. A. de Sousa
    • 1
  • M. C. Ruivo
    • 1
  • Yu. L. Kalinovsky
    • 2
    • 3
  1. 1.Departamento de FısicaUniversidade de CoimbraCoimbraPortugal
  2. 2.Laboratory of Information TechnologiesJoint Institute for Nuclear ResearchDubnaRussia
  3. 3.Départment de Physique B5, Sart TilmanUniversité de LiègeLiège 1Belgium

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