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相关论文: Effect of hyperons on phase coexistence in strange…

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An equation of state of neutron star matter with strange baryons has been obtained. The effects of the strength of hyperon-hyperon interactions on the equations of state constructed for the chosen parameter sets have been analyzed. Numerous…

高能物理 - 唯象学 · 物理学 2011-07-19 I. Bednarek , R. Manka

Within the microscopic transport, systematic investigation of the many facets of hyperons and hypernuclei up to strangeness $S = -2$ are carried out for $^{197}$Au + $^{197}$Au and $^{40}$Ca + $^{40}$Ca at the incident energy of $3A$ GeV.…

核理论 · 物理学 2022-06-28 Hui-Gan Cheng , Zhao-Qing Feng

Two-scalar theories at high temperature exhibit a rich spectrum of possible critical behaviour, with a second or first order phase transition. In the vicinity of the critical temperature one can observe critical exponents, tricritical…

高能物理 - 唯象学 · 物理学 2010-11-01 S. Bornholdt , N. Tetradis , C. Wetterich

In high-energy nuclear collisions, the new phase of the quark-gluon plasma is indicated by an anomalous increase in pressure, an excess of direct photon production, an excess of strangeness production, and an anomalous J/psi suppression. We…

核理论 · 物理学 2011-08-11 Cheuk-Yin Wong

We investigate the density fluctuations induced by hadronic interactions at low temperatures and large chemical potentials after the hadronization of quark-gluon plasma~(QGP). We analyze the structures of net-baryon number kurtosis and…

核理论 · 物理学 2020-04-29 Guo-yun Shao , Xue-yan Gao , Wei-bo He

We argue that the chemical freeze-out in heavy ion collisions at high baryon density is not associated to a phase transition or rapid crossover. We employ the linear nucleon-meson model with parameters fixed by the zero-temperature…

核理论 · 物理学 2012-08-20 Stefan Floerchinger , Christof Wetterich

A general discussion is made concerning the ways in which one can get signatures about a possible liquid-gas phase transition in nuclear matter. Microcanonical temperature, heat capacity and second order derivative of the entropy versus…

核理论 · 物理学 2009-11-07 Al. H. Raduta , Ad. R. Raduta

We describe how the abundance and distribution of hyperon resonances can be used to probe freeze-out conditions. We demonstrate that resonance yields allow us to measure the time scales of chemical and thermal freeze-outs. This should…

高能物理 - 唯象学 · 物理学 2008-11-26 G. Torrieri , J. Rafelski

By means of an effective relativistic nuclear equation of state in the framework of the nonextensive statistical mechanics, characterized by power-law quantum distributions, we study the phase transition from hadronic matter to quark-gluon…

核理论 · 物理学 2012-11-13 A. Lavagno , D. Pigato

Bimodal distributions of some chosen variables measured in nuclear collisions were recently proposed as a non ambiguous signature of a first order phase transition in nuclei. This section presents a compilation of both theoretical and…

核实验 · 物理学 2009-11-11 Olivier Lopez , Marie-France Rivet

In the context of the Hagedorn temperature half-centenary I describe our understanding of the hot phases of hadronic matter both below and above the Hagedorn temperature. The first part of the review addresses many frequently posed…

核理论 · 物理学 2015-09-21 Johann Rafelski

The QCD phase transition has important consequences in the context of both the early universe as well as compact stars. Such transitions are being studied for high temperature and small chemical potential scenario in the laboratory. There…

天体物理学 · 物理学 2008-07-08 Sanjay K. Ghosh

Progress on nuclear liquid gas phase transition (LGPT) or critical behavior has been simply reviewed and some signals of LGPT in heavy ion collisions, especially in NIMROD data, are focused. These signals include the power-law charge…

核实验 · 物理学 2008-11-26 Y. G. Ma

We revisit the present status of the stiffness of the supranuclear equations of state, particularly the solutions that increase the stiffness in the presence of hyperons, the putative transition to a quark matter phase and the robustness of…

核理论 · 物理学 2017-06-28 J. E. Horvath , R. A. de Souza

Background : The emergence of hyperon degrees of freedom in neutron star matter has been associated to first order phase transitions in some phenomenological models, but conclusions on the possible physical existence of an instability in…

核理论 · 物理学 2017-02-09 James R. Torres , Francesca Gulminelli , Debora P. Menezes

The dynamics and thermodynamics of phase transition in hot nuclei are studied through experimental results on multifragmentation of heavy systems (A>200) formed in central heavy ion collisions. Different signals indicative of a phase…

We discuss the impact of strange hadrons, in particular hyperons, on the gross features of compact stars and on core-collapse supernovae. Hyperons are likely to be the first exotic species which appears around twice normal nuclear matter…

核理论 · 物理学 2015-05-18 J. Schaffner-Bielich

Neutron stars contain matter in one of the densest forms found in the Universe. This feature, together with the unprecedented progress in observational astrophysics, makes such stars superb astrophysical laboratories for a broad range of…

天体物理学 · 物理学 2007-05-23 F. Weber , R. Negreiros , P. Rosenfield

It is commonly accepted that strongly interacting matter has several phase transitions in different domains of temperature and baryon density. In this contribution I discuss two most popular phase transitions which in principle can be…

高能物理 - 唯象学 · 物理学 2009-11-11 I. N. Mishustin

The chemical freeze-out of hadrons created in the high energy nuclear collisions is studied within the realistic version of the hadron resonance gas model. The chemical non-equilibrium of strange particles is accounted via the usual…

高能物理 - 唯象学 · 物理学 2014-11-21 V. V. Sagun , D. R. Oliinychenko , K. A. Bugaev , J. Cleymans , A. I. Ivanytskyi , I. N. Mishustin , E. G. Nikonov