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  • 1990-1994  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Higher derivative modifications ofD=10 superspace Yang-Mills theories (1991)
    Springer
    The European physical journal 50 (1991), S. 237-242 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We extend the superspace treatment of higher derivative supersymmetric Yang-Mills theories, emphasizing the role played by manifestD=10 Lorentz covariance and supersymmetry invariance. As an example, the superspace formulation of the effective action is considered for the massless fields in the open superstring, as well as in theSO(32) andE 8×E8 superstring theories. We show that there exists a unique modification of thef-tensor supercurrent which can provide the embedding of theO(α'3) string corrections in the slope parameter expansion for the Yang-Mills sector inD=10 superspace. The new correction term is relevant for the understanding of nonperturbative effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01474077
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Broken supersymmetry in the matrix model on a circle (1992)
    Springer
    The European physical journal 54 (1992), S. 565-572 
    Details
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We consider the discretization of aD=2 surface using polygons. We map the surface onto superspace and integrate over surfaces of arbitrary genus, obtaining a discretized version of the Green-Schwarz string inD=1. Taking an unusual critical limit of the supersymmetric matrix model involved, we construct exact solutions, to all perturbative orders, for the discretized superstring in one dimension, both when the target space is a real line and when the theory is represented in terms of matrix variables on a circle of finite radius. We comment on the behavior of the compactfied perturbative expansion under duality transformations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01559480
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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