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  • 11.15Kc  (1)
  • 13.75 Gx  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 326 (1987), S. 97-106 
    ISSN: 1434-601X
    Keywords: 25.70−z ; 25.90+k ; 13.75 Gx
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Production mechanisms for subthreshold pions in nucleus-nucleus collisions are studied on a microscopic level. The non-relativistic expansion of the pseudoscalar πNN-vertex provides a basis for the construction of several two-nucleon models. These are incorporated into a dynamical description of the heavy-ion collision by boosted harmonic oscillators that adopts essential features from TDHF. The approach allows for a separate analysis of the various production processes and the influence of the collision dynamics on the total pion yield. Results are presented for the system16O +16O at laboratory energies of 40 and 80 MeV per nucleon.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 327 (1987), S. 243-249 
    ISSN: 1434-601X
    Keywords: 11.15Kc ; 12.35Ht ; 12.40Qq
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We describe the effective static quark-(anti)quark colour potential inside hadronic bags in terms of linear strings and semiclassical corrections of orderħ/r. According to (chromo-) electrostatics we generalize this potential to colour non-neutral configurations making use of the mirror charge method. A thermodynamical study of quark-antiquark pairs and many-quark systems shows a virtually higher order phase transition from the hadronic phase to colour deconfinement. The free plasma stage, furthermore, is achieved only at temperatures much higher thanT c≈200 MeV. Hadrons increase in size by a factor of 1.5 fromT=0 toT=T c.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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