Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Neise, L."'
Publikováno v:
NewJ.Phys.3:8,2001
The quark-molecular-dynamics model is used to study microscopically the dynamics of the coloured quark phase and the subsequent hadron formation in relativistic S+Au collisions at the CERN-SPS. Particle spectra and hadron ratios are compared to both
Externí odkaz:
http://arxiv.org/abs/nucl-th/0106036
Publikováno v:
Phys.Lett.B478:161-171,2000
A microscopic model of deconfined matter based on color interactions between semi-classical quarks is studied. A hadronization mechanism is imposed to examine the properties and the disassembly of a thermalized quark plasma and to investigate the pos
Externí odkaz:
http://arxiv.org/abs/nucl-th/9908030
Autor:
Hofmann, M., Eisenberg, J. M., Scherer, S., Bleicher, M., Neise, L., Stöcker, H., Greiner, W.
We investigate the hadronic cooling of a quark droplet within a microscopic model. The color flux tube approach is used to describe the hadronization of the quark phase. The model reproduces experimental particle ratios equally well compared to a sta
Externí odkaz:
http://arxiv.org/abs/nucl-th/9908031
Autor:
Bravina, L. V., Zabrodin, E. E., Gorenstein, M. I., Bass, S. A., Belkacem, M., Bleicher, M., Brandstetter, M., Ernst, C., Hofmann, M., Neise, L., Soff, S., Weber, H., Stoecker, H., Greiner, W.
Publikováno v:
Phys.Rev. C60 (1999) 024904
The assumption of local equilibrium in relativistic heavy ion collisions at energies from 10.7 AGeV (AGS) up to 160 AGeV (SPS) is checked in the microscopic transport model. Dynamical calculations performed for a central cell in the reaction are comp
Externí odkaz:
http://arxiv.org/abs/hep-ph/9906548
Autor:
Scherer, S., Bass, S. A., Belkacem, M., Bleicher, M., Brachmann, J., Dumitru, A., Ernst, C., Gerland, L., Hammon, N., Hofmann, M., Konopka, J., Neise, L., Reiter, M., Schramm, S., Soff, S., Spieles, C., Weber, H., Zschiesche, D., Maruhn, J. A., Stöcker, H., Greiner, W.
Nonequilibrium models (three-fluid hydrodynamics, UrQMD, and quark molecular dynamics) are used to discuss the uniqueness of often proposed experimental signatures for quark matter formation in relativistic heavy ion collisions from the SPS via RHIC
Externí odkaz:
http://arxiv.org/abs/hep-ph/9903392
Publikováno v:
Proceedings of the XXXVI International Winter Meeting on Nuclear Physics, edited by I. Iori, (Bormio, 1998), p. 98
A self-consistent relativistic Boltzmann-Uehling-Uhlenbeck equation for the $N^{*}$(1440) resonance is developed based on an effective Lagrangian of baryons interacting through mesons. The equation is consistent with that of nucleon's and delta's whi
Externí odkaz:
http://arxiv.org/abs/nucl-th/9806021
Autor:
Belkacem, M., Brandstetter, M., Bass, S. A., Bleicher, M., Bravina, L., Gorenstein, M. I., Konopka, J., Neise, L., Spieles, C., Soff, S., Weber, H., Stoecker, H., Greiner, W.
Publikováno v:
Phys.Rev.C58:1727-1733,1998
Equilibrium properties of infinite relativistic hadron matter are investigated using the Ultrarelativistic Quantum Molecular Dynamics (UrQMD) model. The simulations are performed in a box with periodic boundary conditions. Equilibration times depend
Externí odkaz:
http://arxiv.org/abs/nucl-th/9804058
Relativistic quantum transport theory of hadronic matter: the coupled nucleon, delta and pion system
Publikováno v:
Phys. Rev. C59 (1999) 1674-1699.
We derive the relativistic quantum transport equation for the pion distribution function based on an effective Lagrangian of the QHD-II model. The closed time-path Green's function technique, the semi-classical, quasi-particle and Born approximation
Externí odkaz:
http://arxiv.org/abs/nucl-th/9803045
Autor:
Bass, S. A., Belkacem, M., Bleicher, M., Brandstetter, M., Bravina, L., Ernst, C., Gerland, L., Hofmann, M., Hofmann, S., Konopka, J., Mao, G., Neise, L., Soff, S., Spieles, C., Weber, H., Winckelmann, L. A., Stöcker, H., Greiner, W., Hartnack, Ch., Aichelin, J., Amelin, N.
Publikováno v:
Prog.Part.Nucl.Phys.41:255-369,1998; Prog.Part.Nucl.Phys.41:225-370,1998
In this paper, the concepts of microscopic transport theory are introduced and the features and shortcomings of the most commonly used ansatzes are discussed. In particular, the Ultrarelativistic Quantum Molecular Dynamics (UrQMD) transport model is
Externí odkaz:
http://arxiv.org/abs/nucl-th/9803035
Autor:
Bass, S. A., Belkacem, M., Brandstetter, M., Bleicher, M., Gerland, L., Konopka, J., Neise, L., Spieles, C., Soff, S., Weber, H., Stoecker, H., Greiner, W.
Publikováno v:
Phys.Rev.Lett. 81 (1998) 4092-4095
Ratios of hadronic abundances are analyzed for pp and nucleus-nucleus collisions at sqrt(s)=20 GeV using the microscopic transport model UrQMD. Secondary interactions significantly change the primordial hadronic cocktail of the system. A comparison t
Externí odkaz:
http://arxiv.org/abs/nucl-th/9711032