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We establish the updated version of dynamical core--corona initialization framework (DCCI2) as a unified description from small to large colliding systems and from low to high transverse momentum ($p_T$) regions. Using DCCI2, we investigate…

核理论 · 物理学 2022-02-23 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

We present new results in $p$+$p$ and Pb+Pb collisions at the LHC energies from the updated dynamical core--corona initialization framework (DCCI2). The fractions of final hadron yields originating from equilibrated and non-equilibrated…

核理论 · 物理学 2023-03-22 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

The results of the dynamical core-corona initialisation framework in p+p and Pb+Pb collisions at the LHC energies are presented. We extract the fractions of final hadron yields originating from equilibrated and non-equilibrated matter as…

核理论 · 物理学 2024-01-19 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

We quantify to what degree the QCD matter created in high-energy oxygen--oxygen ($\mathrm{O}+\mathrm{O}$) collisions at $\sqrt{s_{NN}} = 5.36$ TeV reaches a locally equilibrated state. For this purpose, we employ a novel framework based on…

核理论 · 物理学 2026-04-08 Naoya Ito , Tetsufumi Hirano

Simple geometrical considerations show that the collision zone in high energy nuclear collisions may be divided into a central part (``core''), with high energy densities, and a peripheral part (``corona''), with smaller energy densities,…

核理论 · 物理学 2008-11-26 Klaus Werner

A simple approach based on the separation of wounded nucleons in an A-A collision in two categories, those suffering single collisions - corona and the rest - core, estimated within a Glauber Monte-Carlo approach, explains the centrality…

核理论 · 物理学 2017-07-19 M. Petrovici , I. Berceanu , A. Pop , M. Târzilă , C. Andrei

We develop the dynamical core-corona initialization framework as a phenomenological description of the formation of quark gluon plasma (QGP) fluids in high-energy nuclear collisions. Using this framework, we investigate the fraction of the…

核理论 · 物理学 2020-03-04 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

We report on the core-corona model developed to describe the main features of hyperon global polarization in semicentral relativistic heavy-ion collisions as a function of the collision energy. We first neglect the contribution to…

高能物理 - 唯象学 · 物理学 2023-01-19 Alejandro Ayala , Isabel Domínguez , Ivonne Maldonado , María Elena Tejeda-Yeomans

We extend the dynamical core-corona initialization (DCCI2) model to include the baryon number evolution in the entire system created in high-energy heavy-ion collisions. Introducing the source term for the baryon number, we describe the…

核理论 · 物理学 2025-04-22 Shin-ei Fujii , Yasuki Tachibana , Tetsufumi Hirano

We compute the excitation function of the global $\Lambda$ polarization in semicentral heavy-ion collisions within a Core--Corona framework, where the interaction region is described as a dense core and a dilute corona separated by a…

高能物理 - 唯象学 · 物理学 2026-04-10 Alejandro Ayala , José Jorge Medina Serna , Isabel Domínguez , María Elena Tejeda-Yeomans

Recently we have shown that the centrality dependence of the multiplicity of different hadron species observed in RHIC and SPS experiments can be well understood in a simple model, dubbed core-corona model. There it is assumed that those…

核理论 · 物理学 2014-11-20 J. Aichelin , K. Werner

We analyse the p--$\phi$ correlation functions in high-multiplicity proton+proton collisions at the LHC using a dynamical model, DCCI2, and discuss the effects of collision dynamics on the p--$\phi$ femtoscopic study. Collision dynamics,…

高能物理 - 唯象学 · 物理学 2025-02-10 Kenshi Kuroki , Tetsufumi Hirano

The centrality dependence of spectra of identified particles in collisions between ultrarelativistic heavy ions with a center of mass energy ($\sqrt{s}$) of 39 and 11.5 $AGeV$ is analyzed in the core - corona model. We show that at these…

高能物理 - 唯象学 · 物理学 2014-02-04 M. Gemard , J. Aichelin

The separation of the source created in ultrarelativistic heavy-ion collisions into a thermalized dense core and an outer mantle consisting of independent nucleon-nucleon collisions is discussed. Evidence for such a two component picture is…

核理论 · 物理学 2009-05-05 Piotr Bozek

We employ the UrQMD transport + hydrodynamics hybrid model to estimate the effects of a separation of the hot equilibrated core and the dilute corona created in high energy heavy ion collisions. It is shown that the fraction of the system…

高能物理 - 唯象学 · 物理学 2011-08-23 J. Steinheimer , M. Bleicher

We analyze Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV with a novel framework based on the dynamical core--corona picture that describes particle productions from both equilibrium and non-equilibrium components. We remark the…

核理论 · 物理学 2022-11-30 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

We develop a new dynamical model for high energy heavy-ion collisions in the beam energy region of the highest net-baryon densities on the basis of non-equilibrium microscopic transport model JAM and macroscopic 3+1D hydrodynamics by…

The core-corona model describes quite successfully the centrality dependence of multiplicity and $<p_t>$ of identified particles observed in heavy ion reaction at beam energies between $\sqrt{s}$ = 17 GeV and 200 GeV. Also the centrality…

核理论 · 物理学 2010-12-10 C. Schreiber , K. Werner , J. Aichelin

The multiplicity dependence of multistrange hadron yields in proton-proton and lead-lead collisions at several TeV allows one to study the transition from very big to very small systems, in particular, concerning collective effects. I…

高能物理 - 唯象学 · 物理学 2024-01-29 K. Werner

The dependencies of charged particle pseudorapidity density and transverse energy pseudorapidity density at midrapidity on the collision energy and on the number of nucleon participants, or centrality, measured in nucleus-nucleus collisions…

高能物理 - 唯象学 · 物理学 2015-04-01 Aditya Nath Mishra , Raghunath Sahoo , Edward K. G. Sarkisyan , Alexander S. Sakharov
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