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In the canonical picture of the evolution of the quark-gluon plasma during a high-energy heavy-ion collision, quarks are produced in two waves. The first is during the first fm/c of the collision, when gluons thermalize into the QGP. After…

Nuclear Theory · Physics 2015-05-30 Scott Pratt

We study the quark deconfinement phase transition in hot $\beta$-stable hadronic matter. Assuming a first order phase transition, we calculate the enthalpy per baryon of the hadron-quark phase transition. We calculate and compare the…

Solar and Stellar Astrophysics · Physics 2014-11-20 I. Bombaci , D. Logoteta , P. K. Panda , C. Providencia , I. Vidana

The temperature dependence of quark and gluon condensates in QCD as precursor of the chiral and deconfining phase transition is modelled with a conformally extended non-linear sigma-model including broken chiral and scale invariance. The…

High Energy Physics - Phenomenology · Physics 2009-10-30 N. O. Agasian , D. Ebert , E. -M. Ilgenfritz

Firstly, I give a brief summary of the current understanding of QCD below and near $T_c$ (the critical temperature of the chiral transition). Some emphases are put on the qualitative difference between the Yukawa regime ($T \sim 0)$ and the…

High Energy Physics - Phenomenology · Physics 2016-09-01 Tetsuo Hatsuda

I use simple thermodynamic reasoning to argue that at temperatures of order a trillion kelvin, QCD, the theory which describes strongly interacting particles such as protons and neutrons under normal conditions, undergoes a phase transition…

Physics Education · Physics 2008-11-26 Simon Hands

The scenario that some first-order phase transitions may have taken place in the early Universe offers us one of the most intriguing and fascinating questions in cosmology. Indeed, the role played by the latent "heat" or energy released in…

High Energy Physics - Phenomenology · Physics 2009-11-13 W-Y. P. Hwang

It is entirely plausible that during the primordial quark-hadron transition, microseconds after the Big Bang, the universe may experience supercooling accompanied by mini inflation leading to a first-order phase transition from quarks to…

General Physics · Physics 2020-05-13 Bikash Sinha

Elementary particles such as quarks and gluons are expected to be fundamental degrees of freedom at ultra high temperatures or densities, while natural phenomena in our daily lives are described in terms of hadronic degrees of freedom.…

High Energy Astrophysical Phenomena · Physics 2024-12-05 Reiko Harada , Kipp Cannon , Kenta Hotokezaka , Koutarou Kyutoku

Merging binaries of neutron stars are not only strong sources of gravitational waves, but also have the potential of revealing states of matter at densities and temperatures not accessible in laboratories. A crucial and long-standing…

High Energy Astrophysical Phenomena · Physics 2019-02-20 Elias R. Most , L. Jens Papenfort , Veronica Dexheimer , Matthias Hanauske , Stefan Schramm , Horst Stöcker , Luciano Rezzolla

The up-dated three-phase concept of nuclear matter evolution in course of cooling down - from the phase of quark-qluon plasma (QGP) through the intermediate phase allowing for massive constituent quarks (valons), pions and kaons (QPK) to…

High Energy Physics - Phenomenology · Physics 2007-05-23 O. D. Chernavskaya , I. I. Royzen

A brief history of the observation of the onset of deconfinement - the beginning of the creation of quark gluon plasma in nucleus-nucleus collisions with increasing collision energy - is presented. It starts with the measurement of hadron…

Nuclear Theory · Physics 2016-01-20 Marek Gazdzicki , Mark I. Gorenstein

The productions of real photons from quark gluon plasma and hot hadronic matter formed after the nucleus - nucleus collisions at ultra-relativistic energies are discussed. The effects of the spectral shift of the hadrons at finite…

Nuclear Theory · Physics 2011-07-19 Jan-e Alam

One of the most promising possibilities may be the appearance of quark matter in astrophysical phenomena in the light of recent progress in observations. The mechanism of deconfinement is not well understood, but the thermodynamical aspects…

High Energy Astrophysical Phenomena · Physics 2013-09-10 Nobutoshi Yasutake , Tsuneo Noda , Hajime Sotani , Toshiki Maruyama , Toshitaka Tatsumi

The QCD phase transition at finite temperature is studied with the dual Ginzburg-Landau theory, which is the QCD effective theory based on the dual Higgs mechanism by QCD-monopole condensation. At high temperature, the confinement force is…

High Energy Physics - Phenomenology · Physics 2007-05-23 Hideo Suganuma , Hiroko Ichie , Hiroshi Toki , Hideko Monden

We use recent lattice QCD outputs to work out the expansion law of the Universe during the cosmological quark--hadron transition. To do so, a suitable technique to exploit both pressure and energy density data, with the related error bars,…

High Energy Physics - Lattice · Physics 2009-10-15 Giandomenico Sassi , Silvio A. Bonometto

We propose a mechanism which naturally contains the relation $\mu_{B} = 3\mu_{S}$ of the hadronic gas produced in heavy-ion collisions at CERN. Our starting assumption is the existence of a sharp front separating the quark-gluon plasma…

High Energy Physics - Phenomenology · Physics 2010-11-01 N. Bilić , J. Cleymans , E. Suhonen , D. W. von Oertzen

The quark-gluon to hadron transition affects the evolution of cosmological perturbations. If the phase transition is first order, the sound speed vanishes during the transition, and density perturbations fall freely. This distorts the…

Astrophysics · Physics 2008-11-26 Christoph Schmid , Dominik J. Schwarz , Peter Widerin

We will follow the two-families scenario described in the accompanying paper, in which compact stars having a very small radius and masses not exceeding about 1.5$M_\odot$ are made of hadrons, while more massive compact stars are quark…

Solar and Stellar Astrophysics · Physics 2016-03-23 Alessandro Drago , Giuseppe Pagliara

We present numerical results on bubble profiles, nucleation rates and time evolution for a weakly first-order quark-hadron phase transition in different expansion scenarios. We confirm the standard picture of a cosmological first-order…

High Energy Physics - Phenomenology · Physics 2009-11-13 B. W. Mintz , A. Bessa , E. S. Fraga

We applied the exact Andreev soft-wall holographic model to investigate phase transitions in rotating strongly interacting matter at high and low densities. Using the dual description of hadronic matter and quark-gluon plasma via thermal…

Nuclear Theory · Physics 2026-04-16 Octavio C. Junqueira , Roldao da Rocha
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