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Related papers: Hadron rapidity spectra within a hybrid model

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Analytical solution of one dimensional hydrodynamical model is derived, where phase transition from the QGP state to the hadronic state is effectively taken into account. The single particle rapidity distribution of charged $\pi$ mesons…

High Energy Physics - Phenomenology · Physics 2010-12-14 Naomichi Suzuki

Helicity separation effect in non-central heavy ion collisions is investigated using the Hadron-String Dynamics (HSD) model. Computer simulations are done to calculate velocity and hydrodynamic helicity on a mesh in a small volume around…

Nuclear Theory · Physics 2015-01-06 O. Teryaev , R. Usubov

The framework of leading-order anisotropic hydrodynamics is supplemented with realistic equation of state and self-consistent freeze-out prescription. The model is applied to central proton-nucleus collisions. The results are compared to…

Nuclear Theory · Physics 2016-03-21 Radoslaw Ryblewski

We study the rapidity spectra in ultra-relativistic heavy ion collisions in the framework of the Landau hydrodynamical model. We find that thermal smearing effects improve the agreement with experimental results on pion rapidity spectra. We…

Nuclear Theory · Physics 2015-03-13 Miklós Zétényi , László P. Csernai

A simultaneous description of hadronic yields; pion, kaon, and proton spectra; elliptic flows; and femtoscopy scales in the hydrokinetic model of A+A collisions is presented at different centralities for the top BNL Relativistic Heavy Ion…

Nuclear Theory · Physics 2013-03-14 Iu. A. Karpenko , Yu. M. Sinyukov , K. Werner

We study the formation of fluid vorticity and the hyperon polarization in heavy-ion collisions at NICA energies in the framework of the Parton-Hadron-String Dynamic Model, taking into account both hadronic and quark-gluonic (partonic)…

Nuclear Theory · Physics 2018-06-13 E. E. Kolomeitsev , V. D. Toneev , V. Voronyuk

Recent development of a hydrodynamic model is discussed by putting an emphasis on realistic treatment of the early and late stages in relativistic heavy ion collisions. The model, which incorporates a hydrodynamic description of the…

Nuclear Theory · Physics 2008-11-26 Tetsufumi Hirano

We present a fast one dimensional hybrid method to efficiently simulate extensive air showers up to the highest observed energies. Based on precalculated pion showers and a bootstrap technique, our method predicts the average shower…

Astrophysics · Physics 2011-05-12 Jaime Alvarez-Muñiz , Ralph Engel , T. K. Gaisser , Jeferson A. Ortiz , Todor Stanev

We present the basic ideas of the Parton-Hadron-String Dynamics (PHSD) transport approach which is a microscopic covariant dynamical model for strongly interacting systems formulated on the basis of Kadanoff-Baym equations for Green's…

Nuclear Theory · Physics 2019-08-02 E. L. Bratkovskaya , W. Cassing , P. Moreau , L. Oliva , O. E. Soloveva , T. Song

The Parton-Hadron-String-Dynamics (PHSD) transport model is employed for p-Pb collisions at $\sqrt{s_{NN}}=$ 5.02 TeV and compared to recent experimental data from the LHC as well as to alternative models. We focus on the question of…

Nuclear Theory · Physics 2014-09-10 V. P. Konchakovski , W. Cassing , V. D. Toneev

The hadron inclusive spectra in pp collisions at high energies are analyzed within a soft QCD model, namely the quark-gluon string model. In addition to the sea quark distribution in the incoming proton we consider also the unintegrated…

High Energy Physics - Phenomenology · Physics 2015-03-17 V. A. Bednyakov , G. I. Lykasov , M. G. Poghosyan

The Parton-Hadron-String-Dynamics (PHSD) transport model is used to study the impact on the choice of initial degrees of freedom on the final hadronic and electromagnetic observables in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. We find…

Nuclear Theory · Physics 2016-05-25 Pierre Moreau , Olena Linnyk , Wolfgang Cassing , Elena Bratkovskaya

A parton-hadron cascade model which is the extension of hadronic cascade model incorporating hard partonic scattering based on HIJING is presented to describe the space-time evolution of parton/hadron system produced by ultra-relativistic…

Nuclear Theory · Physics 2009-10-31 Yasushi Nara

We analyze the spectra of pions and protons in heavy-ion collisions at relativistic energies from 2 A GeV to 65+65 A GeV by using a jet-implemented hadron-string cascade model. In this energy region, hadron transverse mass spectra first…

Nuclear Theory · Physics 2008-11-26 N. Otuka , P. K. Sahu , M. Isse , Y. Nara , A. Ohnishi

We study hybrid stars considering the effects on stellar stability of the hadron-quark conversion speed at the sharp interface. The equation of state is constructed by combining a model-agnostic hadronic description with a constant speed of…

Nuclear Theory · Physics 2023-05-17 Germán Lugones , Mauro Mariani , Ignacio F. Ranea-Sandoval

A three component model, consisting of the hydrodynamical blast-wave term and two power-law terms, is proposed for an improved fitting of the hadron spectra measured at midrapidity and for arbitrary transverse momenta ($p_\textrm{T}$) in pp…

High Energy Physics - Phenomenology · Physics 2021-12-14 Smbat Grigoryan

We study the importance of the initial state, baryon stopping and baryon number transport for the dynamical evolution of a strongly interacting system produced in heavy ion collisions. We employ a hybrid model, which combines the fluid…

Nuclear Theory · Physics 2013-05-30 J. Steinheimer , V. Koch , M. Bleicher

The novel Parton-Hadron-String Dynamics (PHSD) transport approach is applied to nucleus-nucleus collisions at RHIC energies with respect to differential hadronic spectra in comparison to available data. The PHSD approach is based on a…

Nuclear Theory · Physics 2015-05-27 E. L. Bratkovskaya , W. Cassing , V. P. Konchakovski , O. Linnyk

We discuss Hybrid Hadronization, a hadronization model which interpolates between string fragmentation in dilute parton systems and quark recombination in dense parton systems. We lay out the basic principles, discuss some details of the…

Nuclear Theory · Physics 2019-01-25 Rainer J. Fries , Michael Kordell

We recently have presented first physical predictions of a spatially hybrid model that follows the evolution of a negative streamer discharge in full three spatial dimensions; our spatially hybrid model couples a particle model in the high…

Plasma Physics · Physics 2015-03-19 Chao Li , Ute Ebert , Willem Hundsdorfer