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We investigate the freeze-out conditions of a particle in an expanding system of interacting particles in order to understand the productions of resonances, hadronic molecules and light nuclei in heavy ion collisions. Applying the kinetic…

Nuclear Theory · Physics 2018-02-28 Sungtae Cho , Taesoo Song , Su Houng Lee

The region of large net-baryon densities in the QCD phase diagram is expected to exhibit a first-order phase transition. Experimentally, its study will be one of the primaryobjectives for the upcoming FAIR accelerator. We model the…

High Energy Physics - Phenomenology · Physics 2015-06-23 Christoph Herold , Marlene Nahrgang , Yupeng Yan , Chinorat Kobdaj

The up-dated three-phase concept of nuclear matter evolution in course of cooling down - from the phase of quark-qluon plasma (QGP) through the intermediate phase allowing for massive constituent quarks (valons), pions and kaons (QPK) to…

High Energy Physics - Phenomenology · Physics 2007-05-23 O. D. Chernavskaya , I. I. Royzen

The production of light nuclei in heavy -ion collisions is an excellent probe for studying the phase diagram of quantum chromodynamics and for the search of a critical end point. In this work we apply a hybrid approach in which we study the…

Nuclear Theory · Physics 2024-09-09 Martha Ege , Justin Mohs , Jan Staudenmaier , Hannah Elfner

The UrQMD model with a density dependent equation of state, including a first-order phase transition, is used to study the time dependence of baryon number and proton number susceptibilities up to third order in heavy ion reactions of…

High Energy Physics - Phenomenology · Physics 2025-06-13 Thiranat Bumnedpan , Jan Steinheimer , Tom Reichert , Christoph Herold , Ayut Limphirat , Marcus Bleicher

In this review we address the dynamics of relativistic heavy-ion reactions and in particular the information obtained from electromagnetic probes that stem from the partonic and hadronic phases. The out-of-equilibrium description of…

Nuclear Theory · Physics 2016-02-17 O. Linnyk , E. L. Bratkovskaya , W. Cassing

We study the collision energy dependence of (anti-)deuteron and (anti-)triton production in the most central Au+Au collisions at $\sqrt{s_\mathrm{NN}}=$ 7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV, using the nucleon coalescence model. The…

Nuclear Theory · Physics 2020-11-04 Wenbin Zhao , Chun Shen , Che Ming Ko , Quansheng Liu , Huichao Song

Within a multiphase transport model we study phi meson production in relativistic heavy ion collisions from both superposition of initial multiple proton-proton interactions and the secondary collisions in the produced hadronic matter. The…

Nuclear Theory · Physics 2009-11-07 Subrata Pal , C. M. Ko , Zi-wei Lin

The effect of possible in-medium modifications of nucleon-nucleon ($NN$) cross sections on particle production is investigated in heavy ion collisions ($HIC$) at intermediate energies. In particular, using a fully covariant relativistic…

Nuclear Theory · Physics 2008-11-26 V. Prassa , G. Ferini , T. Gaitanos , H. H. Wolter , G. A. Lalazissis , M. Di Toro

We discuss the potential of light-nuclei measurement in heavy-ion collisions at intermediate energies for the search of the hypothetical QCD critical end-point. A previous proposal based on neutron density fluctuations has brought appealing…

Nuclear Theory · Physics 2020-10-28 Edward Shuryak , Juan M. Torres-Rincon

We show that a measurement of the reaction energy dependence of relative hadron resonance yields in heavy ion collisions can be used to study the phase structure of the dense QCD matter created in these collisions, and investigate the…

Nuclear Theory · Physics 2008-11-26 Giorgio Torrieri , Johann Rafelski

The hadronic transport model \textsc{art} is extended to include the production and annihilation of deuterons via the reactions $BB \leftrightarrow dM$, where $B$ and $M$ stand for baryons and mesons, respectively, as well as their elastic…

Nuclear Theory · Physics 2009-12-14 Yongseok Oh , Zi-Wei Lin , Che Ming Ko

We study thermal dilepton production and anisotropic flow in Pb+Pb collisions at $\sqrt{s_{NN}} = 5.02 \, \mathrm{TeV}$ using next-to-leading-order (NLO) thermal QCD dilepton emission rates. A hybrid model (IP-Glasma+\kompost+MUSIC+UrQMD)…

Nuclear Theory · Physics 2025-05-01 Xiang-Yu Wu , Lipei Du , Charles Gale , Sangyong Jeon

The pion-to-proton ratio is identified as a potential signal for a non-equilibrium first-order chiral phase transition in heavy-ion collisions, as the pion multiplicity is directly related to entropy production. To showcase this effect, a…

We investigate the influence of QCD phase transition and critical fluctuations of the critical end point (CEP) on the deuteron yield within the functional renormalization group (fRG) approach, by using the nucleon coalescence model and a…

Nuclear Theory · Physics 2025-11-27 Sheng-nan Han , Jing Wu , Yong-rui Chen , Yi-zhen Huang , Feng Li , Wei-jie Fu

We investigate the interactions of the deuteron with light mesons during the hadronic phase in heavy-ion collisions. We treat the deuteron as a weakly bound state and employ the quasi-free approximation to describe the $d\pi$ interaction.…

High Energy Physics - Phenomenology · Physics 2026-01-12 L. M. Abreu , R. Higa , R. O. Magalhães , F. S. Navarra

Inspired by various studies on extracting the density distributions of nuclei from their collisions at ultrarelativistic energies, in the present work we investigate the possibility of extracting the neutron-skin thickness $\Delta r_{np}$…

Nuclear Theory · Physics 2024-11-26 Tian-Ze Li , Lu-Meng Liu , Jun Xu , Zhong-Zhou Ren

We propose a new method, i.e., an exclusive quark combination model + an inclusive hadron recombination model, to study different production sources of light nuclei in relativistic heavy-ion collisions. We take deuterons and $^3$He produced…

High Energy Physics - Phenomenology · Physics 2019-03-27 Rui-qin Wang , Jun Song , Gang Li , Feng-lan Shao

The statistical hadronization model is a simple and efficient phenomenological framework in which the relative yields for very high energy heavy ion collisions are essentially determined by a single model parameter---the chemical freeze-out…

Nuclear Theory · Physics 2019-08-28 Yiming Cai , Thomas D. Cohen , Boris A. Gelman , Yukari Yamauchi

We investigate the properties of the QCD matter across the deconfinement phase transition. In the scope of the parton-hadron string dynamics (PHSD) transport approach, we study the strongly interacting matter in equilibrium as well as the…

Nuclear Theory · Physics 2015-06-17 O. Linnyk , E. L. Bratkovskaya , W. Cassing , V. P. Konchakovski , V. Ozvenchuk