Importance of repulsive interactions for the equation of state and other properties of strongly interacting matter

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Physics of Particles and Nuclei

DOI:https://doi.org/10.1134/S106377961505007X· OSTI ID:22977408

Begun, V., E-mail: [e-mail] ^[1]; Bogolyubov Institute for Theoretical Physics, Kiev ^[2]

---

1. Jan Kochanowski University, Kielce (Poland)
2. (Ukraine)

We illustrate the role of repulsive interactions in a hadron-resonance gas at freeze-out and in a gas of quark-gluon bags. Taking into account nonzero size of particles in hadron gas leads to a significant decrease and shift of the net-baryon density maximum. The transition point from baryon to meson dominated matter depends on the difference between baryon and meson radiuses. We also show that depending on the properties of the quark-gluon bags one may obtain any type of the phase transition from hadron gas to quark-gluon plasma: first or second order, as well as four types of the crossover.

• OSTI ID: 22977408
• Journal Information: Physics of Particles and Nuclei, Vol. 46, Issue 5; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7796
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
EQUATIONS OF STATE
FREEZING OUT
INTERACTIONS
MESONS
PHASE TRANSFORMATIONS
QUARK MATTER