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We propose the enhancement of $\Lambda_c$ yield in heavy ion collisions at RHIC and LHC as a novel signal for the existence of diquarks in the strongly coupled quark-gluon plasma produced in these collisions as well as in the $\Lambda_c$.…

核理论 · 物理学 2008-11-26 S. Yasui , S. H. Lee , K. Ohnishi , I. -K. Yoo , C. M. Ko

In ultrarelativistic heavy-ion collisions, a plasma of deconfined quarks and gluons is formed within $1$ fm/c of the nuclei's impact. The complex dynamics of the collision before $\approx 1$ fm/c is often described with parametric models,…

核理论 · 物理学 2024-06-24 Matthew R. Heffernan , Charles Gale , Sangyong Jeon , Jean-François Paquet

Initial states of high energy heavy ion collisions are studied using a dipole model through the DIPSY event generator that dynamically includes saturation together with the fluctuations and correlations of the BFKL cascade. The…

核理论 · 物理学 2011-08-25 Christoffer Flensburg

The initial distribution of gluons at the very early times after a high energy heavy ion collision is described by the bulk scale $Q_s$ of gluon saturation in the nuclear wavefunction. The subsequent evolution of the system towards kinetic…

高能物理 - 唯象学 · 物理学 2010-11-30 Jefferson Bjoraker , Raju Venugopalan

Dynamics of relativistic heavy-ion collisions is investigated on the basis of a simple (1+1)-dimensional hydrodynamical model in light-cone coordinates. The main emphasis is put on studying sensitivity of the dynamics and observables to the…

高能物理 - 唯象学 · 物理学 2008-11-26 Igor N. Mishustin

Since its discovery, global polarization of the $\Lambda$ hyperon in heavy-ion collisions has been firmly established and is widely attributed to the large vorticity generated in the rotating quark-gluon plasma. In contrast, nearly fifty…

高能物理 - 唯象学 · 物理学 2026-03-23 Feng Liu , Zhoudunming Tu

In this note we discuss the rapidity dependence of the initial and final conditions for hydrodynamic evolution as well as the resulting basic hadronic observables in heavy ion collisions at $\sqrt{s_{\rm NN}}=72$ GeV in the framework of a…

核理论 · 物理学 2019-03-19 Iurii Karpenko

The paper is devoted to the description and prediction of various bulk observables in the Pb+Pb collisions at the LHC energy $\sqrt{s_{NN}}=5.02$ TeV within the integrated hydrokinetic model (iHKM). Sensitivity of the results to the choice…

高能物理 - 唯象学 · 物理学 2019-10-30 V. M. Shapoval , Yu. M. Sinyukov

We study heavy flavor evolution in the quark-gluon plasma matter and the subsequent hadron gas created in ultrarelativistic heavy-ion collisions. The motion of heavy quarks inside the QGP is described using our modified Langevin framework…

核理论 · 物理学 2015-06-22 Shanshan Cao , Guang-You Qin , Steffen Bass

The impact of non-equilibrium effects on the dynamics of heavy-ion collisions is investigated by comparing a non-equilibrium transport approach, the Parton-Hadron-String-Dynamics (PHSD), to a 2D+1 viscous hydrodynamical model, which is…

The impact of non-equilibrium effects on the dynamics of heavy-ion collisions is investigated by comparing a non-equilibrium transport approach, the Parton-Hadron-String-Dynamics (PHSD), to a 2D+1 viscous hydrodynamical model, which is…

Electromagnetic field produced in high-energy heavy-ion collisions contains much useful information, because the field can be directly related to the motion of the matter in the whole stage of the reaction. One can divide the total…

核理论 · 物理学 2009-10-31 T. Osada , Y. Hama

Heavy ion collisions at ultrarelativistic energies offer the opportunity to study the irreversibility of multiparticle processes. Together with the many-body decays of resonances, the multiparticle processes cause the system to evolve…

高能物理 - 唯象学 · 物理学 2007-05-23 E. E. Zabrodin , L. V. Bravina , H. Stoecker , W. Greiner

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…

高能物理 - 唯象学 · 物理学 2025-06-13 Thiranat Bumnedpan , Jan Steinheimer , Tom Reichert , Christoph Herold , Ayut Limphirat , Marcus Bleicher

Heavy-ion collisions covering a wide range of collision energies provide a vast amount of observables characterizing the properties of strongly-interacting matter. In particular collisions towards the high baryon-density regime of the QCD…

高能物理 - 唯象学 · 物理学 2021-09-20 Anna Schäfer , Iurii Karpenko , Hannah Elfner

The dependence of the spectra shape of produced charged hadrons on the size of a colliding system is discussed using a two component model. As a result, the hierarchy by the system-size in the spectra shape is observed. Next, the…

高能物理 - 唯象学 · 物理学 2014-07-16 A. A. Bylinkin , N. S. Chernyavskaya , A. A. Rostovtsev

Fluctuations in the initial state of heavy-ion collisions are larger at RHIC energy than at LHC energy. This fact can be inferred from recent measurements of the fluctuations of the particle multiplicities and of elliptic flow performed at…

Bayesian analyses in the context of relativistic heavy-ion collisions have so far relied almost exclusively on bulk hadronic observables constructed from momentum degrees of freedom to constrain the transport properties of the quark-gluon…

核理论 · 物理学 2026-05-29 Sushant K. Singh , Eduardo Grossi , Francesco Becattini

Our recently developed 2+1 (boost-invariant) hydrodynamic model has been presented and used to i) describe the soft hadronic data collected in the central region of the relativistic heavy-ion collisions at RHIC and ii) to make predictions…

核理论 · 物理学 2011-02-02 Mikolaj Chojnacki

Present knowledge of QCD n-point functions of Wilson lines at high energies is rather limited. In practical applications, it is therefore customary to factorize higher n-point functions into products of two-point functions (dipoles) which…

高能物理 - 唯象学 · 物理学 2010-11-11 Adrian Dumitru , Jamal Jalilian-Marian