Hadronic matter at high energy density, and the search for the hadron-parton QCD phase transition

1998 ◽  
Vol 630 (1-2) ◽  
pp. 535-548 ◽  
Author(s):  
Reinhard Stock
Keyword(s):  
Phase Transition ◽  
Energy Density ◽  
High Energy ◽  
Hadronic Matter ◽  
High Energy Density ◽  
Qcd Phase Transition

scholarly journals QCD PHASE TRANSITION IN DGP BRANE COSMOLOGY

2012 ◽  
Vol 21 (08) ◽  
pp. 1250069 ◽  
Author(s):  
K. ATAZADEH ◽  
A. M. GHEZELBASH ◽  
H. R. SEPANGI
Keyword(s):  
Phase Transition ◽  
Energy Density ◽  
Early Universe ◽  
Effective Temperature ◽  
Quark Gluon Plasma ◽  
Friedmann Equation ◽  
Gluon Plasma ◽  
High Energy ◽  
Brane World ◽  
High Energy Density

In the standard picture of cosmology it is predicted that a phase transition, associated with chiral symmetry breaking after the electroweak transition, has occurred at approximately 10μ seconds after the Big Bang to convert a plasma of free quarks and gluons into hadrons. We consider the quark-hadron phase transition in a Dvali, Gabadadze and Porrati (DGP) brane world scenario within an effective model of QCD. We study the evolution of the physical quantities useful for the study of the early universe, namely, the energy density, temperature and the scale factor before, during and after the phase transition. Also, due to the high energy density in the early universe, we consider the quadratic energy density term that appears in the Friedmann equation. In DGP brane models such a term corresponds to the negative branch (ϵ = -1) of the Friedmann equation when the Hubble radius is much smaller than the crossover length in 4D and 5D regimes. We show that for different values of the cosmological constant on a brane, λ, phase transition occurs and results in decreasing the effective temperature of the quark-gluon plasma and of the hadronic fluid. We then consider the quark-hadron transition in the smooth crossover regime at high and low temperatures and show that such a transition occurs along with decreasing the effective temperature of the quark-gluon plasma during the process of the phase transition.

Fundamental interplay between phase-transition kinetics and thermodynamics of manganese-based sodium layered oxides during cationic and anionic redox

2020 ◽  
Vol 8 (40) ◽  
pp. 21142-21150 ◽  
Author(s):  
Hyungjun Kim ◽  
Jaewoon Lee ◽  
Myungkyu Kim ◽  
Sojung Koo ◽  
Maenghyo Cho ◽  
...  
Keyword(s):  
Phase Transition ◽  
Energy Density ◽  
Phase Stability ◽  
High Energy ◽  
High Energy Density ◽  
Layered Oxides ◽  
Kinetics And Thermodynamics ◽  
Phase Transition Kinetics

Interplay between the phase-stability and -transition kinetics toward high-energy density with stable cyclability in Mn-based layered oxides for advanced SIBs.

scholarly journals Antiferroelectric to relaxor ferroelectric phase transition in PbO modified (Pb0.97La0.02)(Zr0.95Ti0.05)O3 ceramics with a large energy-density for dielectric energy storage

RSC Advances ◽  
2017 ◽  
Vol 7 (68) ◽  
pp. 43327-43333 ◽  
Author(s):  
Bi Li ◽  
Qiu-Xiang Liu ◽  
Xin-Gui Tang ◽  
Tian-Fu Zhang ◽  
Yan-Ping Jiang ◽  
...  
Keyword(s):  
Phase Transition ◽  
Energy Efficiency ◽  
Energy Storage ◽  
Energy Density ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
High Energy ◽  
Relaxor Ferroelectric ◽  
High Energy Density ◽  
Recoverable Energy

The recoverable energy density and energy efficiency of the high energy density electrification PLZT2/95/5 ceramic capacitors as a function of the temperature and electric field.

Phase Transition and Chemical Reactivity of 1H-tetrazole under High Pressure up to 100 GPa

2021 ◽  
Author(s):  
Dexiang Gao ◽  
Xingyu Tang ◽  
Xuan Wang ◽  
Xin Yang ◽  
Peijie Zhang ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Energy Density ◽  
Chemical Reactivity ◽  
High Energy ◽  
High Energy Density ◽  
High Energy Density Materials

Pressure-induced phase transition and polymerization of nitrogen-rich molecules are widely focused due to its extreme importance for the development of green high energy density materials. Here, we present a study...

scholarly journals STRONGLY INTERACTING MATTER AT HIGH ENERGY DENSITY

2010 ◽  
Vol 25 (32) ◽  
pp. 5847-5864 ◽  
Author(s):  
LARRY MCLERRAN
Keyword(s):  
Energy Density ◽  
Gluon Plasma ◽  
High Energy ◽  
Baryon Density ◽  
Hadronic Matter ◽  
High Energy Density ◽  
Color Glass ◽  
Color Glass Condensate ◽  
Strongly Interacting ◽  
Very High Energy

This lecture concerns the properties of strongly interacting matter (which is described by Quantum Chromodynamics) at very high energy density. I review the properties of matter at high temperature, discussing the deconfinement phase transition. At high baryon density and low temperature, large Nc arguments are developed which suggest that high baryonic density matter is a third form of matter, Quarkyonic Matter, that is distinct from confined hadronic matter and deconfined matter. I finally discuss the Color Glass Condensate which controls the high energy limit of QCD, and forms the low x part of a hadron wave function. The Glasma is introduced as matter formed by the Color Glass Condensate which eventually thermalizes into a Quark Gluon Plasma.

Triggering Phase Transition and Capacity Enhancement of Nb2O5 for Fast-Charging Lithium-ion Storage

2021 ◽  
Author(s):  
Fei Shen ◽  
Zhongti Sun ◽  
Liang Zhao ◽  
Yuanhua Xia ◽  
Yanyan Shao ◽  
...  
Keyword(s):  
Phase Transition ◽  
Energy Density ◽  
Electrode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Capacity Enhancement ◽  
Fast Charging ◽  
Ion Storage

Developing high energy density and high-power density electrode materials is of great importance for lithium-ion batteries to satisfy the requirements of customer market. We report that introducing Mo into Nb2O5...

3+1 DIMENSIONAL RELATIVISTIC HYDRODYNAMIC SPACE TIME EVOLUTION OF THE REACTION O(200 GeV/n)→Pb

1987 ◽  
Vol 02 (03) ◽  
pp. 193-198 ◽  
Author(s):  
T. RENTZSCH ◽  
G. GRAEBNER ◽  
J.A. MARUHN ◽  
H. STÖCKER ◽  
W. GREINER
Keyword(s):  
Energy Density ◽  
Gluon Plasma ◽  
High Energy ◽  
Dynamical Behaviour ◽  
Hadronic Matter ◽  
High Energy Density ◽  
Density Region ◽  
Time Space ◽  
200 Gev ◽  
Unique Signal

3+1 dimensional relativistic calculations of the time-space evolution of the reaction 16 O→ Pb at 200 GeV/nucleon are presented. An energy density regime of several GeV/fm 3 containing more than 100 nucleons is built up. The lift time of this high energy density region turns out to be quite short, τ~4 fm/c . Therefore a transformation of the hadronic matter into a quark gluon plasma may not be achievable with such light projectiles. It is interesting, on the other hand, that collective acceleration of the whole target to rapidities Y=2–3 is obtained in collisions with impact parameters b≤4 fm/c . This should be a unique signal for fluid dynamical behaviour at these high energies.

Sign in / Sign up

Export Citation Format

Share Document