scholarly journals Kaon Condensation and Dilepton Production from Strange Hadronic Matter

1997 ◽  
Vol 50 (1) ◽  
pp. 23 ◽  
Author(s):  
T. Tatsumi ◽  
H. Shin ◽  
T. Maruyama ◽  
H. Fujii
Keyword(s):  
Early Stage ◽  
Mean Field Theory ◽  
Mean Field ◽  
Heavy Ion ◽  
High Energy ◽  
Hadronic Matter ◽  
Dilepton Production ◽  
Relativistic Mean Field ◽  
Kaon Condensation ◽  
Ion Collisions

We consider modification of kaons and the implications for dilepton production in the early stage of high-energy heavy-ion collisions. Constructing the equation of state of hadronic matter, including kaons as well as hyperons Λ with recourse to the relativistic mean-field theory, we study the production rate of dileptons. The possibility of K+ condensation is also revisited in this framework.

scholarly journals Kaon condensation and equation of state in the relativistic mean-field theory

1994 ◽  
Vol 337 (1-2) ◽  
pp. 19-24 ◽  
Author(s):  
Tomoyuki Maruyama ◽  
Hirotsugu Fujii ◽  
Takumi Muto ◽  
Toshitaka Tatsumi
Keyword(s):  
Field Theory ◽  
Equation Of State ◽  
Mean Field Theory ◽  
Mean Field ◽  
Relativistic Mean Field Theory ◽  
Relativistic Mean Field ◽  
Kaon Condensation

Covariant Equation of State for Two Colliding Nuclear Matters in the Relativistic Meson Field Theory

1997 ◽  
Vol 06 (01) ◽  
pp. 151-159 ◽  
Author(s):  
M. Rashdan
Keyword(s):  
Field Theory ◽  
Equation Of State ◽  
Nonlinear Models ◽  
Mean Field Theory ◽  
Mean Field ◽  
Heavy Ion ◽  
Ion Scattering ◽  
Relativistic Mean Field ◽  
Heavy Ion Scattering ◽  
Covariant Equation

The relativistic mean field theory (linear and nonlinear) models are extended to the case of two colliding nuclear matters, relevant to heavy ion scattering and reactions. The effect of vacuum corrections is taken into account through the relativistic Hartree approximation. The Fermi sea is assumed to consist of two colliding Lorentz elongated spheres. A relativistic covariant Pauli correction is considered for the overlap case. This relativistic Pauli correction is found to be very important due to its dependence on the effective nucleon mass which strongly depends on the model equation of state. It is found that by increasing the velocity the energy per baryon increases and saturates at higher densities. The increase in the energy per baryon at low density (the region of no overlap) is much larger than that at high density (the region of large overlap), due to Pauli correction effects. The saturation density of the nonlinear model is shifted to larger values than that of the linear model. Vacuum corrections effects are found to reduce largely te overlap region.

scholarly journals Dilepton production in high energy heavy ion collisions with 3+1D relativistic viscous hydrodynamics

2013 ◽  
Vol 904-905 ◽  
pp. 557c-560c ◽  
Author(s):  
G. Vujanovic ◽  
C. Young ◽  
B. Schenke ◽  
S. Jeon ◽  
R. Rapp ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
High Energy ◽  
Dilepton Production ◽  
Ion Collisions ◽  
Viscous Hydrodynamics

scholarly journals Nonextensive statistical effects in the quark-gluon plasma formation at relativistic heavy-ion collisions energies

Open Physics ◽  
2012 ◽  
Vol 10 (3) ◽  
Author(s):  
Gianpiero Gervino ◽  
Andrea Lavagno ◽  
Daniele Pigato
Keyword(s):  
Quark Gluon Plasma ◽  
Mean Field ◽  
Relativistic Equation ◽  
Baryon Number ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Baryon Density ◽  
Hadronic Matter ◽  
Relativistic Heavy Ion Collisions ◽  
Relativistic Mean Field

AbstractWe investigate the relativistic equation of state of hadronic matter and quark-gluon plasma at finite temperature and baryon density in the framework of the non-extensive statistical mechanics, characterized by power-law quantum distributions. We impose the Gibbs conditions on the global conservation of baryon number, electric charge and strangeness number. For the hadronic phase, we study an extended relativistic mean-field theoretical model with the inclusion of strange particles (hyperons and mesons). For the quark sector, we employ an extended MIT-Bag model. In this context we focus on the relevance of non-extensive effects in the presence of strange matter.

EFFECTS OF Δ-BARYON INTERACTION STRENGTH ON NEUTRON STARS PROPERTIES

2007 ◽  
Vol 16 (02n03) ◽  
pp. 175-183 ◽  
Author(s):  
J. C. T. DE OLIVEIRA ◽  
S. B. DUARTE ◽  
H. RODRIGUES ◽  
M. CHIAPPARINI ◽  
M. KYOTOKU
Keyword(s):  
Equation Of State ◽  
Neutron Stars ◽  
Mean Field Theory ◽  
Mean Field ◽  
Interaction Strength ◽  
Hadronic Matter ◽  
Resonance Neutron ◽  
Baryon Interaction ◽  
Relativistic Mean Field ◽  
Central Regions

We investigate the effect of Δ-resonance interaction strength on the equation of state of asymmetric hadronic matter and neutron stars structure. We discuss Δ-matter formation at high densities in the context of a relativistic mean field theory. We show that the attractive nature of the Δ-baryon interaction can induce a phase transition accompanying Δ-matter formation, at values of densities presumably existing in central regions of neutron stars. The possibility of a rich Δ-resonance neutron star is presented using the proposed equation of state.

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