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

200 篇论文

Solar flares are explosive events in the solar corona, representing fast conversion of magnetic energy into thermal and kinetic energy, and hence radiation, due to magnetic reconnection. Modelling is essential for understanding and…

太阳与恒星天体物理 · 物理学 2019-02-13 M. Gordovskyy , P. K. Browning , R. F. Pinto

We have implemented a Langevin approach for the transport of heavy quarks in the UrQMD hybrid model. The UrQMD hybrid approach provides a realistic description of the background medium for the evolution of relativistic heavy ion collisions.…

高能物理 - 唯象学 · 物理学 2016-01-13 Thomas Lang , Hendrik van Hees , Jan Steinheimer , Marcus Bleicher

Differences in activities in colloidal particles are sufficient to drive phase separation between active and passive (or less active) particles, even if they have only excluded volume interactions. In this paper, we study the phase…

软凝聚态物质 · 物理学 2020-05-27 Efe Ilker , Jean-François Joanny

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…

核理论 · 物理学 2018-12-31 Yuuka Kanakubo , Michito Okai , Yasuki Tachibana , Tetsufumi Hirano

In high energy nuclear collisions, most calculations on the early equilibration of the parton plasma showed that the system does not come close to full equilibrium, especially for the fermion components. However, since the system is…

核理论 · 物理学 2007-05-23 S. M. H. Wong

Advances in our understanding and the modeling of stellar core-collapse and supernova explosions over the past 15 years are reviewed, concentrating on the evolution of hydrodynamical simulations, the description of weak interactions and…

天体物理学 · 物理学 2008-11-26 H. -Th. Janka , K. Langanke , A. Marek , G. Martinez-Pinedo , B. Mueller

The transport approach is a useful tool to study dynamics of non-equilibrium systems. For heavy-ion collisions at intermediate energies, where both the smooth nucleon potential and the hard-core nucleon-nucleon collision are important, the…

核理论 · 物理学 2019-04-02 Jun Xu

The profiles of emission lines formed in the corona contain information on the dynamics and the heating of the hot plasma. Only recently has data with sufficiently high spectral resolution become available for investigating the details of…

太阳与恒星天体物理 · 物理学 2015-05-18 H. Peter

Basic problems of the semiclassical microscopic modelling of strongly interactingsystems are discussed within the framework of Quantum Molecular Dynamics (QMD). This model allows to study the influence of several types of nucleonic…

核理论 · 物理学 2014-11-18 C. Hartnack , Rajeev K. Puri , J. Aichelin , J. Konopka , S. A. Bass , H. Stoecker , W. Greiner

Event by event fluctuations of particle multiplicities and their ratios are considered to be sensitive probes to the exotic phenomena in high energy heavy ion collisions like phase transtion or the occurence of critical point. These…

高能物理 - 唯象学 · 物理学 2014-08-22 S. Ahmad , M. Farooq , S. Bashir , H. jahan , N. Ahmad , S. Chattopadhyay

Hybrid atom-ion systems are a rich and powerful platform for studying chemical reactions, as they feature both excellent control over the electronic state preparation and readout as well as a versatile tunability over the scattering energy,…

We argue that ultrahigh energy cosmic ray collisions in the Earth atmosphere can probe the strange quark density of the nucleon. These collisions have center-of-mass energies \agt 10^{4.6} A GeV, where A \geq 14 is the nuclear baryon…

高能物理 - 唯象学 · 物理学 2019-08-06 Luis A. Anchordoqui , Haim Goldberg , Thomas J. Weiler

Using the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model, we investigate azimuthal correlations in p--Pb collisions at $\sqrt{s_{_{\rm NN}}}=5.02$ TeV. Comparison with the experimental data shows that UrQMD can not reproduce…

核理论 · 物理学 2015-03-25 You Zhou , Xiangrong Zhu , Pengfei Li , Huichao Song

We study the production of (hyper-)nuclei and di-baryons in most central heavy Ion collisions at energies of $E_{lab}=1-160 A$ GeV. In particular we are interested in clusters produced from the hot and dense fireball. The formation rate of…

核理论 · 物理学 2012-07-12 J. Steinheimer , K. Gudima , A. Botvina , I. Mishustin , M. Bleicher , H. Stöcker

The effect of an ionic core on the temperature relaxation in dense hot plasma of beryllium is studied using the pseudpotential model by Gericke et al [Phys. Rev. E 2010, 81, 065401(R)]. Employing the screened version of the ion…

等离子体物理 · 物理学 2023-10-20 T. S. Ramazanov S. K. Kodanova , M. K. Issanova , B. Z. Kenzhegulov

The talk, based on \cite{LN10}, analyzes the consequences of the assumption that the effects of quantum coherence and the resulting angular ordering in QCD cascades are disrupted within the hot fireball created in ultrarelativistic heavy…

核理论 · 物理学 2015-05-20 A. Leonidov , V. Nechitailo

We study the heat capacity and neutrino emission reactions (direct and modified Urca processes, nucleon-nucleon bremsstrahlung, Cooper pairing of nucleons) in matter of supranuclear density of the neutron star cores with superfluid neutrons…

天体物理学 · 物理学 2011-02-16 D. G. Yakovlev , K. P. Levenfish , Yu. A. Shibanov

The correlated dynamics of coupled quantum rotors carrying electric dipole moment is theoretically investigated. The energy spectra of coupled rotors as a function of dipolar interaction energy is analytically solved. The calculated…

介观与纳米尺度物理 · 物理学 2009-11-10 Hiroyuki Shima , Tsuneyoshi Nakayama

The transport of the energy contained in electrons, both thermal and suprathermal, in solar flares plays a key role in our understanding of many aspects of the flare phenomenon, from the spatial distribution of hard X-ray emission to global…

太阳与恒星天体物理 · 物理学 2016-06-22 Nicolas H. Bian , Eduard P. Kontar , A. Gordon Emslie

The event topology in relativistic heavy ion collisions is determined by various multi-particle production mechanisms. The simultaneous model treatment of different collective nuclear effects at high energies (such as a hard multi-parton…

高能物理 - 唯象学 · 物理学 2011-03-23 I. P. Lokhtin , A. V. Belyaev , L. V. Malinina , S. V. Petrushanko , A. M. Snigirev , I. Arsene , E. E. Zabrodin