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  • 1
    Electronic Resource
    Electronic Resource
    η′ Production in proton-proton collisions near threshold (1998)
    Springer
    The European physical journal 2 (1998), S. 333-335 
    Details
    ISSN: 1434-601X
    Keywords: PACS:13.75.C Nucleon-nucleon interactions – 12.40.V One-meson exchange model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstact: Within the one-pion exchange model we calculate the near-threshold η′ production from pp collisions including the final state interaction between the protons. Since the description of the data is quite well we conclude that η, ρ or ω exchange currents either play no role or cancel each other to a large extent in this reaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050129
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Correlation dynamics of Yukawa-theory in 1+1 dimensions (1998)
    Springer
    The European physical journal 2 (1998), S. 355-370 
    Details
    ISSN: 1434-601X
    Keywords: PACS:11.10-z Field theory – 11.10.Ef Lagrangian and Hamiltonian approach – 11.15.Tk Other nonperturbativ techniques
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstact: Using the method of correlation dynamics we investigate the properties of a field-theory for fermions and scalar bosons coupled via a Yukawa interaction. Within this approach, which consists in an expansion of full equal-time Green functions into connected equal-time Green functions and a corresponding truncation of the hierarchy of equations of motion we carry out calculations up to 4th order in the connected Green functions and evaluate the effective potential of the theory in 1+1 dimensions on a torus. Comparing the different approximations we find a strong influence of the connected 4-point functions on the properties of the system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100500050132
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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