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Related papers: Interplay between core and corona from small to la…

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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…

Nuclear Theory · Physics 2024-01-19 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

I establish the dynamical core--corona initialization framework (DCCI2) as a state-of-the-art dynamical framework that is capable of describing small and large colliding systems at the LHC energies. Under the core--corona picture,…

Nuclear Theory · Physics 2022-08-16 Yuuka Kanakubo

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…

Nuclear Theory · Physics 2022-02-23 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

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…

Nuclear Theory · Physics 2020-03-04 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

We investigate whether the quark gluon plasma (QGP) is created in small colliding systems from analyses of various hadron yields and their ratios in proton-proton (p+p), proton-lead (p+Pb) and lead-lead (Pb+Pb) collisions at LHC energies.…

Nuclear Theory · Physics 2020-01-08 Y. Kanakubo , M. Okai , Y. Tachibana , T. Hirano

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…

Nuclear Theory · Physics 2022-11-30 Yuuka Kanakubo , Yasuki Tachibana , Tetsufumi Hirano

We investigate the enhancement of yields of strange and multi-strange baryons in proton-proton (p+p), proton-lead (p+Pb) and lead-lead (Pb+Pb) collisions at the Large Hadron Collider (LHC) energies from a dynamical core-corona…

Nuclear Theory · Physics 2018-12-31 Yuuka Kanakubo , Michito Okai , Yasuki Tachibana , Tetsufumi Hirano

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…

Nuclear Theory · Physics 2017-07-19 M. Petrovici , I. Berceanu , A. Pop , M. Târzilă , C. Andrei

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…

Nuclear Theory · Physics 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,…

Nuclear Theory · Physics 2008-11-26 Klaus Werner

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…

Nuclear Theory · Physics 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,…

High Energy Physics - Phenomenology · Physics 2025-02-10 Kenshi Kuroki , Tetsufumi Hirano

We study the possibility that partonic matter produced at early stage of ultrarelativistic heavy-ion collisions is out of chemical equilibrium. It is assumed that initially this matter is mostly composed of gluons, but quarks and antiquarks…

High Energy Physics - Phenomenology · Physics 2016-01-21 V. Vovchenko , M. I. Gorenstein , L. M. Satarov , I. N. Mishustin , L. P. Csernai , I. Kisel , H. Stoecker

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…

High Energy Physics - Phenomenology · Physics 2023-01-19 Alejandro Ayala , Isabel Domínguez , Ivonne Maldonado , María Elena Tejeda-Yeomans

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…

High Energy Physics - Phenomenology · Physics 2011-08-23 J. Steinheimer , M. Bleicher

We investigate the role of partonic degrees of freedom in high multiplicity p-Pb collisions at $\sqrt{s_{NN}}=$ 5.02 TeV carried out at the Large Hadron Collider (LHC) by studying the production and collective flow of identified hadrons at…

Nuclear Theory · Physics 2020-09-22 Wenbin Zhao , Che Ming Ko , Yu-Xin Liu , Guang-You Qin , Huichao Song

Partonic matter produced in the early stage of ultrarelativistic nucleus-nucleus collisions is assumed to be composed mainly of gluons, and quarks and antiquarks are produced at later times. To study the implications of such a scenario, the…

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…

High Energy Physics - Phenomenology · Physics 2014-02-04 M. Gemard , J. Aichelin

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…

Nuclear Theory · Physics 2025-04-22 Shin-ei Fujii , Yasuki Tachibana , Tetsufumi Hirano

The started LHC heavy ion program makes it possible to probe new frontiers of the high temperature Quantum Chromodynamics. It is expected that the role of hard and semi-hard particle production processes may be significant at ultra-high…

High Energy Physics - Phenomenology · Physics 2012-09-20 I. P. Lokhtin , A. V. Belyaev , L. V. Malinina , S. V. Petrushanko , E. P. Rogochaya , A. M. Snigirev
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