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We introduce a family of equations of state (EoS) for hybrid neutron star (NS) matter that is obtained by a two-zone parabolic interpolation between a soft hadronic EoS at low densities and a stiff quark matter EoS with color…

Nuclear Theory · Physics 2022-09-08 Oleksii Ivanytskyi , David Blaschke

We systematically compare an event-by-event heavy-ion collision model to data from the Large Hadron Collider. Using a general Bayesian method, we probe multiple model parameters including fundamental quark-gluon plasma properties such as…

We investigate how the choice of equation of state (EOS) and resolution conspire to affect the outcomes of giant impact (GI) simulations. We focus on the simple case of equal mass collisions of two Earth-like $0.5\,M_\oplus$ proto-planets…

Earth and Planetary Astrophysics · Physics 2022-04-21 Thomas Meier , Christian Reinhardt , Joachim Stadel

The equation of state (EOS) of nuclear matter, i.e., the thermodynamic relationship between the binding energy per nucleon, temperature, density, as well as the isospin asymmetry, has been a hot topic in nuclear physics and astrophysics for…

Nuclear Theory · Physics 2020-04-27 Yongjia Wang , Qingfeng Li

Determining the phase structure of Quantum Chromodynamics (QCD) and its Equation of State (EOS) at densities and temperatures realized inside neutron stars and their mergers is a long-standing open problem. The holographic V-QCD framework…

High Energy Astrophysical Phenomena · Physics 2023-01-11 Tuna Demircik , Christian Ecker , Matti Järvinen , Luciano Rezzolla , Samuel Tootle , Konrad Topolski

Search for a proper and realistic equation of state (EOS) for strongly interacting matter used in the study of the QCD phase diagram still appears as a challenging problem. Recently, we constructed a hybrid model description for the quark…

High Energy Physics - Phenomenology · Physics 2013-05-20 P. K. Srivastava , C. P. Singh

A hydrodynamic + cascade model of relativistic heavy ion collisions is presented and compared to available hadronic data from the SPS to RHIC. The model consistently reproduces the radial and elliptic flow data for different particles,…

Nuclear Theory · Physics 2021-08-12 D. Teaney , J. Lauret , E. V. Shuryak

We discuss a relation between the QCD thermodynamics obtained from a statistical analysis of particle production in heavy ion collisions at SPS and RHIC energies and recent LGT results at finite chemical potential. We show that basic…

Nuclear Theory · Physics 2016-09-08 K. Redlich , F. Karsch , A. Tawfik

It is believed that a novel state of matter - Quark Gluon Plasma (QGP) will be transiently produced if normal hadronic matter is subjected to sufficiently high temperature and/or density. We have investigated the possibility of QGP…

Nuclear Theory · Physics 2009-09-25 Sourav Sarkar

The hadron--quark crossover equation of state (EOS) of neutron star (NS) matter is investigated by combining relativistic mean-field (RMF) hadronic models with the Nambu--Jona-Lasinio (NJL) model for quark matter. The vector and diquark…

Nuclear Theory · Physics 2026-04-13 Xuesong Geng , Kaixuan Huang , Hong Shen , Lei Li , Jinniu Hu

Nonextensive statistics has attracted attention as a description of particle spectra in nuclear collisions at QCD energies. First, we construct the equation of state by incorporating Tsallis statistics based on the hadron resonance gas and…

Nuclear Theory · Physics 2022-09-21 K. Kyan , A. Monnai

The phase diagram of quantum chromodynamics (QCD) and its associated thermodynamic properties of quark gluon plasma (QGP) are studied in the presence of time dependent magnetic field. The study plays a pivotal role in the field of…

High Energy Physics - Phenomenology · Physics 2024-02-06 Yogesh Kumar , Poonam Jain , Pargin Bangotra , Vinod Kumar , D. V. Singh , S. K. Rajouria

The phase transition of hadronic to quark matter and the boundaries of the mixed hadron-quark coexistence phase are studied within the two Equation of State (EoS) model. The relativistic effective mean field approach with constant and…

Nuclear Theory · Physics 2015-05-28 B. Liu , M. Di Toro , G. Y. Shao , V. Greco , C. W. Shen , Z. H. Li

The determination of the equation of state (EOS) of a neutron star (NS) and its maximum mass is very important for understanding the formation and properties of NSs under extreme conditions, but they remain open questions. Short-duration…

High Energy Astrophysical Phenomena · Physics 2025-02-25 Jun-Xiang Huang , Hou-Jun Lü , En-Wei Liang

We quantitatively estimate properties of the quark-gluon plasma created in ultra-relativistic heavy-ion collisions utilizing Bayesian statistics and a multi-parameter model-to-data comparison. The study is performed using a recently…

Nuclear Theory · Physics 2016-08-22 Jonah E. Bernhard , J. Scott Moreland , Steffen A. Bass , Jia Liu , Ulrich Heinz

We demonstrate in a general and analytic way how high-density information about the equation of state (EoS) of strongly interacting matter obtained using perturbative Quantum Chromodynamics (pQCD) constrains the same EoS at densities…

Nuclear Theory · Physics 2022-05-19 Oleg Komoltsev , Aleksi Kurkela

Equation of state (EOS) for bcc tungsten at 300 K (or 3000 K) up to 1000 GPa (or 300 GPa) was predicted for the first time by solving the partition function via a direct integral approach (DIA) with ab initio calculations of the atoms'…

Materials Science · Physics 2022-11-02 Yue-Yue Tian , Bo-Yuan Ning , X. -D. Xiang , Hui-Fen Zhang , Xi-Jing Ning

In this work, we discuss the dense matter equation of state (EOS) for the extreme range of conditions encountered in neutron stars and their mergers. The calculation of the properties of such an EOS involves modeling different degrees of…

Lattice QCD predicts a phase transition between hadronic matter and a system of deconfined quarks and gluons (the Quark Gluon Plasma) at high energy densities. Recent results from the Brookhaven Relativistic Heavy Ion Collider (RHIC)…

Nuclear Experiment · Physics 2007-05-23 Raimond Snellings

Lattice QCD predicts a phase transition between hadronic matter and a system of deconfined quarks and gluons (the Quark Gluon Plasma) at high energy densities. Recent results from the Brookhaven Relativistic Heavy Ion Collider (RHIC)…

High Energy Physics - Experiment · Physics 2007-05-23 Raimond Snellings