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We review the most important experimental results from the first three years of nucleus-nucleus collision studies at RHIC, with emphasis on results from the STAR experiment, and we assess their interpretation and comparison to theory. The…

Nuclear Experiment · Physics 2009-09-29 STAR Collaboration , J. Adams

Comparison of two appropriately chosen screening masses of colour singlet operators in the pure glue QCD plasma indicates that at sufficiently high temperature it contains a weakly-interacting massive quasi-particle with the quantum numbers…

High Energy Physics - Lattice · Physics 2009-11-07 Saumen Datta , Sourendu Gupta

The mass spectra of quarkonium systems at temperature equal zero are analyzed by solving the non-relativistic radial wave equation using the internal energy potential. The QGP matter is studied through the dissociations of quarkonium…

High Energy Physics - Phenomenology · Physics 2014-08-26 N. M. El Naggar , L. I. Abou Salem , A. G. Shalaby , M. A. Bourham

The Quark-Gluon Plasma (QGP) is the QCD phase of matter expected to be formed at small proper-times in the collision of heavy-ions at high energy. Experimental observations seem to favor a strongly coupled QCD plasma with the hydrodynamic…

High Energy Physics - Phenomenology · Physics 2008-11-26 Robi Peschanski

A thermodynamically consistent density dependent quark mass model has been used to study the velocity of sound in a hot quark-gluon plasma. The results are compared with the recent lattice data.

Nuclear Theory · Physics 2010-11-11 Sanjay K. Ghosh , Tamal K. Mukherjee , Sibaji Raha

We consider here quark matter equation of state including strange quarks and taking into account a nontrivial vacuum structure for QCD with gluon condensates. The parameters of condendsate function are determined from minimisation of the…

High Energy Physics - Phenomenology · Physics 2009-10-28 A. Mishra , H. Mishra , P. K. Panda , S. P. Misra

Low surface brightness galaxies are an excellent laboratory where stars and baryonic matter act as tracers of the gravitational potential of the dark matter halo. If dark matter is modeled as a perfect fluid, then spherically symmetric and…

Astrophysics of Galaxies · Physics 2024-08-29 Andrés Aceña , Juan Barranco , Argelia Bernal , Ericson López , Mario Llerena

We explore the out-of-equilibrium dynamics of the Quark-Gluon Plasma at zero and finite net-baryon density based on an effective kinetic theory of Quantum Chromo Dynamics (QCD). By investigating the isotropization of the longitudinal…

High Energy Physics - Phenomenology · Physics 2021-09-22 Xiaojian Du , Sören Schlichting

We study the phase structure and phase transition of cold dense QCD matter via the Dyson-Schwinger equation approach. We take the rainbow approximation and the Gaussian-type gluon model. In order to guarantee that the quark number density…

High Energy Physics - Phenomenology · Physics 2021-09-22 Zhan Bai , Yu-xin Liu

The appearance of quark matter in the centers of compact stars has a number of astrophysical implications. In this contribution I discuss the structure and stability of compact stars, gravitational radiation from non-axisymmetric…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Armen Sedrakian

The development of a Modified Perturbation Theory for QCD, introduced in previous works, is continued. The gluon propagator is modified as consequence of a soft gluon pairs condensate in the vacuum. The modified Feynman rules for $\alpha=1$…

High Energy Physics - Phenomenology · Physics 2007-05-23 Marcos Rigol

(Abridged) We present a series of decaying turbulence simulations that represent a cluster-forming clump within a molecular cloud, investigating the role of magnetic fields on the formation of potential star-forming cores. We present an…

Astrophysics · Physics 2007-11-07 David A. Tilley , Ralph E. Pudritz

Models for the internal composition of Dense Compact Stars are reviewed as well as macroscopic properties derived by observations of relativistic processes. Modeling of pure neutron matter Neutron Stars is presented and crust properties are…

Solar and Stellar Astrophysics · Physics 2013-11-19 D. E. Alvarez-Castillo , S. Kubis

We study the influence of fuzzy-dark-matter cores on the orbits of stars at the Galactic centre. This dark matter candidate condenses into dense, solitonic cores, and, if a super-massive black hole is present at the centre of such a core,…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-25 Yonadav Barry Ginat , Bence Kocsis

Aims: We present a new microscopic hadron-quark hybrid equation of state model for astrophysical applications, from which compact hybrid star configurations are constructed. These are composed of a quark core and a hadronic shell with a…

High Energy Astrophysical Phenomena · Physics 2015-04-29 Sanjin Benic , David Blaschke , David E. Alvarez-Castillo , Tobias Fischer , Stefan Typel

The objective of this research is to explore compact celestial objects while considering the framework of an extended gravitational theory known as $\mathcal{R}+f(\mathcal{G})$ gravity. The notations $\mathcal{R}$ and $\mathcal{G}$ denote…

General Relativity and Quantum Cosmology · Physics 2024-07-08 G. G. L. Nashed , Kazuharu Bamba

In this chapter we discuss some possible physical pictures that describe the constitution of the inner crust of compact objects. Different relativistic models both with constant couplings and density dependent ones are used. We calculate…

The Solenoidal Tracker at RHIC (STAR) experiment utilizes its excellent mid-rapidity tracking and particle identification capabilities to study the emergent properties of Quantum Chromodynamics (QCD). The STAR heavy-ion program at…

Nuclear Experiment · Physics 2016-11-23 Mustafa Mustafa

In this conference-proceedings contribution, we review recent advances in placing model-independent constraints on the properties of cold and dense QCD matter inside neutron stars. In addition to introducing new bounds for the Equation of…

High Energy Astrophysical Phenomena · Physics 2019-04-03 Eemeli Annala , Tyler Gorda , Aleksi Kurkela , Joonas Nättilä , Aleksi Vuorinen

Neutron stars are cosmic laboratories to study dense matter in Quantum Chromodynamics (QCD). The observable mass-radius relations of neutron stars are determined by QCD equations of state, and can reflect the properties of QCD phase…

Nuclear Theory · Physics 2021-05-04 Toru Kojo
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