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  • Articles: DFG German National Licenses  (11)
  • 1990-1994  (6)
  • 1985-1989  (5)
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  • Articles: DFG German National Licenses  (11)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Hadronic energy density in the dual parton model with formation zone intranuclear cascade (1992)
    Springer
    The European physical journal 56 (1992), S. 115-121 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study the evolution of the hadronic energy and particle density during central nucleus-nucleus collisions at various energies with a Monte Carlo version of the dual parton model. We find at RHIC and at LHC energies energy densities well in the range where the formation of quark gluon plasma is expected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01589714
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The diffractive component of particle production in the dual multistring fragmentation model (1987)
    Springer
    The European physical journal 33 (1987), S. 517-523 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The single diffractive component is introduced in the dual Monte Carlo chain decay model of soft particle production. The diffractively excited multiparticle states in this model arise from the fragmentation of two chains formed out of the valence quarks and antiquarks (or diquarks) of the diffractively excited hadron and a sea quark-antiquark pair of the Pomeron, considered to be a gluonic object. In this way the excited clusters behave in a way quite similar to multiparticle states formed in nondiffractive meson-hadron collisions. The calculated multiparticle states agree quite well with recent data from the UA4-SPS collider collaboration and with recent data on strange particle production in diffractive photon-proton collisions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01548263
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Dual parton model with complete formation zone intranuclear cascade for the description of particle production in hadron-nucleus and nucleus-nucleus interactions (1991)
    Springer
    The European physical journal 52 (1991), S. 643-653 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present a Monte Carlo version of the dual parton model for the description of particle production in hadron-nucleus and nucleus-nucleus collisions with a complete formation zone intranuclear cascade. All generations of secondary interactions are considered. Furthermore, Fermi motion and Pauli's principle are introduced to control the generation of low-energy nucleons. The model is compared with rapidity distributions and grey-particle production in hadron-nucleus interactions as well as with results from nucleus-nucleus collisions. Within the DPM the number of chains with sea-quarks at their ends grows with the complexity of the target and/or projectile nuclei as well as with the collision energy. We discuss this increase of chain-end sea-quarks as a mechanism for strangeness enhancement within the model. Furthermore we study the properties of the model at the energies of future heavy ion colliders.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01562339
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Hadron production at supercolliders in the two component dual parton model and the smallx behaviour of the structure functions (1992)
    Springer
    The European physical journal 54 (1992), S. 683-690 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Models which contain a semihard component sensitively depend on the smallx region of the structure functions. Within the framework of a two component dual parton model the effect of recently proposed steeper structure functions is investigated. Drastic changes which appear in the bare scattering amplitudes get significantly reduced by unitarization. For presently available energies the semihard component seems still too small to allow for clear cut conclusions about the correctness of the various proposed structure functions. However, the predictions for SSC or LHC energies depend on the choice of the structure function quite decisively, resulting in a substantial uncertainty in the extrapolations. The uncertainty is reduced to a less worrisome level if the consideration is restricted to the strongly shadowed parton distribution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01559499
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Multiparticle correlations in a two component dual parton model (1991)
    Springer
    The European physical journal 51 (1991), S. 99-105 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The dual parton model (DPM) describes soft and semihard multiparticle production. The presented version of the DPM includes soft and hard mechanisms as well as diffractive processes. The model is formulated as a Monte-Carlo event generator. We calculate, in the energy range of the hadron colliders, particle ratios as function of the transverse momentum, the rise of the average transverse momenta with the charged multiplicity, forward-backward correlations, short range correlations and factorial moments as function of the size of the pseudorapidity bins. For most of these quantities we find a reasonable agreement with experimental data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01579565
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    The single diffractive component in hadron-hadron collisions within the two-component Dual Parton model (1993)
    Springer
    The European physical journal 59 (1993), S. 481-488 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The single diffractive component in hadronhadron interactions is studied in the two-component Dual Parton Model. We distinguish high mass single diffraction represented by a triple-Pomeron exchange and low mass single diffraction described via a two channel eikonal method. The calculated single diffractive cross sections, and the distributions agree quite well with data from collider and fixed target experiments. The fit of the model parameters to cross section data gives a extrapolation of the total, elastic, and single diffractive cross sections to supercollider energies which depends on the parton structure functions used for the minijet component.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01498629
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Particle production and correlations in hadron-hadron collisions in the dual Monte-Carlo chain fragmentation model (1985)
    Springer
    The European physical journal 27 (1985), S. 413-418 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study a dual Monte-Carlo two-chain fragmentation model for hadron-hadron collisions. A comparison of the model to data from proton-proton, pion-proton and kaon-proton interactions is presented. This includes inclusivex-distributions in the fragmentation region, resonance production and forward-backward correlations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01548646
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Particle production in high energy nucleus-nucleus collisions in a dual Monte-Carlo multi-chain fragmentation model (1985)
    Springer
    The European physical journal 27 (1985), S. 419-426 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A dual Monte-Carlo multi-chain fragmentation model for particle production in high energy nucleus-nucleus collisions is presented. Average multiplicities and rapidity distributions for average and for central collisions are compared to results from alternative calculations and to cosmic ray data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01548647
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Rapidity ratios, feynman-x distributions and forward-backward correlations in hadron-nucleus collisions in a dual Monte-Carlo multi-chain fragmentation model (1985)
    Springer
    The European physical journal 27 (1985), S. 569-575 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Hardon-nucleus interactions are studied for different projectile hadrons and targets in the dual multi-chain fragmentation model. Using the Monte-Carlo method allows the study of inclusive as well as exclusive cross-sections. Energy momentum and all additive quantum numbers are conserved exactly in the model. Results are presented on theA-dependence of single particle distributions in the projectile frag-mentation region, average multiplicities and forward-backward correlations. The inclusion of the Fermi momentum of the target nucleus makes it possible to study rapidity distributions as well as rapidity ratios in the target fragmentation region. Satisfactory agreement with recent data is obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436512
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Hadron production in hadron-nucleus and nucleus-nucleus collisions in a dual parton model modified by a formation zone intranuclear cascade (1989)
    Springer
    The European physical journal 43 (1989), S. 439-446 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The concepts of the formation zone and formation zone intranuclear cascade are discussed. The dual parton Monte Carlo model is modified by the leading order formation zone cascade. The properties of the resulting model are presented and discussed. It is found that especially rapidity or pseudorapidity distributions change strongly with the value of the formation zone parameter. A comparison with data leads to a phenomenological value of the formation zone parameter of τ0 c≈5 to 10 fm. This corresponds roughly to an average formation zone of 1 fm in the rest frame of the secondary produced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01506540
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    Paper (German National Licenses)
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