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相关论文: Core-corona separation in the UrQMD hybrid model

200 篇论文

In this work we describe our implementation of a thermodynamic energy equation into the global corona model of the Space Weather Modeling Framework (SWMF), and its development into the new Lower Corona (LC) model. This work includes the…

太阳与恒星天体物理 · 物理学 2014-11-20 Cooper Downs , Ilia I. Roussev , Bart van der Holst , Noé Lugaz , Igor V. Sokolov , Tamas I. Gombosi

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

We compute the $\Lambda$ and $\overline{\Lambda}$ global polarizations in semi-central heavy-ion collisions using the core-corona model where the source of $\Lambda$'s and $\overline{\Lambda}$'s is taken as consisting of a high-density core…

高能物理 - 唯象学 · 物理学 2022-03-28 Alejandro Ayala , Isabel Domínguez , Ivonne Maldonado , María Elena Tejeda-Yeomans

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

In this paper we present a numerical study of the dynamics of partially ionized coronal rain blobs. We use a two-fluid model to perform a high-resolution 2D simulation that takes into account the collisional interaction between the charged…

太阳与恒星天体物理 · 物理学 2022-12-07 David Martínez-Gómez , Ramón Oliver , Elena Khomenko , Manuel Collados

Direct photon emission in heavy-ion collisions is calculated within a relativistic micro+macro hybrid model and compared to the microscopic transport model UrQMD. In the hybrid approach, the high-density part of the evolution is replaced by…

高能物理 - 唯象学 · 物理学 2010-04-22 Björn Bäuchle , Marcus Bleicher

The Pierre Auger Collaboration has reported an excess in the number of muons of a few tens of percent over expectations computed using extrapolation of hadronic interaction models tuned to accommodate LHC data. Very recently, we proposed an…

高能物理 - 唯象学 · 物理学 2018-11-20 Jorge F. Soriano , Luis A. Anchordoqui , Thomas C. Paul , Thomas J. Weiler

The discrepancy between models and data regarding the muon content in air showers generated by ultra-high energy cosmic rays still needs to be solved. The CONEX simulation framework provides a flexible tool to assess the impact of different…

高能天体物理现象 · 物理学 2024-12-30 Ana Martina Botti , Isabel Astrid Goos , Matias Perlin , Tanguy Pierog

Twisted coronal loops should be ubiquitous in the solar corona. Twisted magnetic fields contain excess magnetic energy, which can be released during magnetic reconnection, causing solar flares. The aim of this work is to investigate…

太阳与恒星天体物理 · 物理学 2015-01-27 Mykola Gordovskyy , Philippa Browning , Eduard Kontar , Nicolas Bian

A set of different equations of state is implemented in the molecular dynamics part of a non-equilibrium transport simulation (UrQMD) of heavy-ion collisions. It is shown how different flow observables are affected by the density dependence…

We present a new global model of the solar corona, including the low corona, the transition region and the top of chromosphere. The realistic 3D magnetic field is simulated using the data from the photospheric magnetic field measurements.…

In this review article, we first briefly introduce the transport theory and quantum molecular dynamics model applied in the study of the heavy ion collisions from low to intermediate energies. The developments of improved quantum molecular…

核理论 · 物理学 2020-05-27 Yingxun Zhang , Ning Wang , Qingfeng Li , Li Ou , Junlong Tian , Min Liu , Kai Zhao , Xizhen Wu , Zhuxia Li

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…

We investigate the structural, thermodynamic and dynamic behavior of of a two dimensional core-corona system using Langevin Dynamics simulations. The particles are modeled using a core-softened potential that exhibits waterlike anomalies…

软凝聚态物质 · 物理学 2018-02-14 José Rafael Bordin , Marcia C. Barbosa

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

To characterize the conditions required to reach advanced divertor regimes, a one-dimensional computational model has been developed based on a coordinate transformation to incorporate two-dimensional effects. This model includes transport…

plasm-ph · 物理学 2009-10-28 R. A. Vesey , D. E. Post , G. Bateman

It is widely accepted that X-ray emission in luminous active galactic nuclei (AGNs) originates from hot corona. To prevent the corona from over-cooling by strong X-ray emission, steady heating to the corona is essential, for which the most…

高能天体物理现象 · 物理学 2023-11-27 Jie-Ying Liu , Jirong Mao , B. F. Liu

Transient collimated plasma eruptions in the solar corona, commonly known as coronal (or X-ray) jets, are among the most interesting manifestations of solar activity. It has been suggested that these events contribute to the mass and energy…

太阳与恒星天体物理 · 物理学 2017-08-09 R. Lionello , T. TÖrÖk , V. S. Titov , J. E. Leake , Z. MikiĆ , J. A. Linker , M. G. Linton

We study coupled quantum systems as the working media of thermodynamic machines. Under a suitable phase-space transformation, the coupled systems can be expressed as a composition of independent subsystems. We find that for the coupled…

量子物理 · 物理学 2017-09-12 George Thomas , Manik Banik , Sibasish Ghosh

In this letter, the Grey-Disk and the Core-Corona models are combined in a scenario that aims to explain different unexpected features observed in the interactions of the highest energy particles in the Earth's atmosphere. In particular,…

高能物理 - 唯象学 · 物理学 2022-12-20 Ruben Conceição , Mário Pimenta