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    Multi - instantons, supersymmetry and topological field theories 
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    Multi - instantons, supersymmetry and topological field theories

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    Accepted version (250.2Kb)
    Volume
    480
    Pagination
    365 - 372
    Publisher
    Elsevier
    DOI
    10.1016/S0370-2693(00)00396-8
    Journal
    Physics Letters B
    Issue
    3-4
    Metadata
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    Abstract
    In this letter we argue that instanton-dominated Green's functions in N=2 Super Yang-Mills theories can be equivalently computed either using the so-called constrained instanton method or making reference to the topological twisted version of the theory. Defining an appropriate BRST operator (as a supersymmetry plus a gauge variation), we also show that the expansion coefficients of the Seiberg-Witten effective action for the low-energy degrees of freedom can be written as integrals of total derivatives over the moduli space of self-dual gauge connections.
    Authors
    TRAVAGLINI, G; Bellisai, D; Fucito, F; Tanzini, A
    URI
    http://qmro.qmul.ac.uk/xmlui/handle/123456789/7811
    Collections
    • Physics and Astronomy [1241]
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