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Related papers: Constraining the Phase-Transition EoS using the En…

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Using FOPI data on elliptic flow in Au+Au collisions between 0.4 and 1.5A GeV we extract constraints for the equation of state (EOS) of compressed symmetric nuclear matter using the transport code IQMD by introducing an observable…

Nuclear Experiment · Physics 2015-12-09 A. Le Fèvre , Y. Leifels , W. Reisdorf , J. Aichelin , Ch. Hartnack

Global evolution of the matter in relativistic collisions of heavy nuclei and the resulting global freeze-out parameters are analyzed in a wide range of incident energies 2.7 GeV $\le \sqrt{s_{NN}}\le$ 39 GeV. The analysis is performed…

Nuclear Theory · Physics 2015-06-16 Yu. B. Ivanov

A phenomenological momentum-independent (MID) model is constructed to describe the equation of state (EOS) for isospin asymmetric nuclear matter, especially the density dependence of the nuclear symmetry energy…

Nuclear Theory · Physics 2009-10-02 Lie-Wen Chen

As the interior density of a neutron star can become very high, it has been expected and discussed that quark matter may exist inside it. To describe the transition from hadron to quark phases (and vice versa), there are mainly two methods;…

High Energy Astrophysical Phenomena · Physics 2017-03-29 Takahide Kambe , Tetsuya Katayama , Koichi Saito

The viscosity over entropy density ratio, or KSS number, can help isolate the critical point in the hadron phase-diagram in Relativistic Heavy Ion Collisions. We argue that this quantity does have a minimum at a phase transition or…

High Energy Physics - Phenomenology · Physics 2009-04-24 Antonio Dobado , Felipe J. Llanes-Estrada , Juan M. Torres-Rincon

In this study, we introduce a novel late-time effective dark energy model characterized by a quadratic equation of state (EoS) and rigorously examine its observational constraints. Initially, we delve into the background dynamics of this…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-11 Hossein Moshafi , Alireza Talebian , Ebrahim Yusofi , Eleonora Di Valentino

The equation of state (EoS) of strongly interacting matter at finite temperature and chemical potentials (baryon, charge, and strangeness) is a crucial input for hydrodynamic simulations of relativistic heavy-ion collisions. We construct a…

Nuclear Theory · Physics 2026-04-27 Fu-Peng Li , Long-Gang Pang , Guang-You Qin

The study of the nuclear equation-of-state (EoS) is a one of the primary goals of experimental and theoretical heavy-ion physics. The comparison of recent high statistics data from the STAR Collaboration with transport models provides a…

In this paper, the implications of the symmetry energy on the hadron and quark phase transitions in the compact star, including the properties of the possible configurations of the quark-hadron hybrid stars, are investigated in the…

Nuclear Theory · Physics 2023-07-19 Parada T. P. Hutauruk , Hana Gil , Seung-il Nam , Chang Ho Hyun

It is generally believed that the quark-hadron transition at small values of baryon chemical potentials $\mu_B$ is a crossover but changes to a first-order phase transition with an associated critical endpoint (CEP) as $\mu_B$ increases.…

Nuclear Theory · Physics 2019-02-01 Kai-Jia Sun , Lie-Wen Chen , Che Ming Ko , Jie Pu , Zhangbu Xu

We present a recent development towards a unified description of quark-hadron matter in the QCD phase diagram that is based on a cluster decomposition of the generalized Beth-Uhlenbeck approach to quark matter, selfconsistently coupled to…

Nuclear Theory · Physics 2021-04-15 David Blaschke

Transition of a compact star into the third family for an equation of state (EoS) featuring mass twins is considered. The energy released at a baryon number conserving transition for static compact stars configurations is computed for two…

Nuclear Theory · Physics 2022-12-14 David E. Alvarez-Castillo

We study current bounds on strong first-order phase transitions (PTs) along the equation of state (EOS) of dense strongly interacting matter in neutron stars, under the simplifying assumption that on either side of the PT the EOS can be…

High Energy Astrophysical Phenomena · Physics 2023-10-31 Tyler Gorda , Kai Hebeler , Aleksi Kurkela , Achim Schwenk , Aleksi Vuorinen

We employ an isospin dependent version of the QMD transport model to study the influence of the isospin dependent part of the nuclear matter equation of state and in-medium nucleon-nucleon cross-sections on the dynamics of heavy-ion…

Nuclear Theory · Physics 2011-09-23 M. D. Cozma

We study observational signatures of the hadron-quark crossover in binary-neutron-star mergers by numerical-relativity simulations with various mass configurations. We employ two equations of state (EoSs) for matter consistent with…

High Energy Astrophysical Phenomena · Physics 2025-03-24 Yuki Fujimoto , Kenji Fukushima , Kenta Hotokezaka , Koutarou Kyutoku

We analyse various flow coefficients of anisotropic momentum distribution of final state particles in mid-central ($b$ $=$ 5--9 $fm$) Au + Au collisions in the beam energy range $\rm E_{\rm Lab}$ $=$ $1A -158A$ GeV. Different variants of…

We consider the transition from quark to hadronic matter which may result during the cooling/expansion of the quark-gluon plasma formed in energetic collisions of weakly isospin-asymmetric ions. This transition involves the energy density…

Nuclear Theory · Physics 2010-09-08 Francesca Sammarruca

Based on the assumption that the QCD phase diagram gives a realistic picture of hadronic and quark matter under different regimes, it is possible to claim that a quark core may be present inside compact objects commonly named hybrid neutron…

Nuclear Theory · Physics 2022-09-28 M. R. Pelicer , D. P. Menezes

Supervised learning with a deep convolutional neural network is used to identify the QCD equation of state (EoS) employed in relativistic hydrodynamic simulations of heavy-ion collisions from the simulated final-state particle spectra…

High Energy Physics - Phenomenology · Physics 2017-08-03 Long-Gang Pang , Kai Zhou , Nan Su , Hannah Petersen , Horst Stöcker , Xin-Nian Wang

Proton elliptic flow is studied as a function of impact-parameter $b$, for two transverse momentum cuts in 2 - 6 AGeV Au + Au collisions. The elliptic flow shows an essentially linear dependence on b (for $1.5 < b < 8$ fm) with a negative…

Nuclear Experiment · Physics 2008-11-26 E895 Collaboration , P. Danielewicz