SISSA Preprints

Browsing by Author "Argurio, Riccardo"

Browsing by Author "Argurio, Riccardo"

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  • Argurio, Riccardo; Bertolini, Matteo; Franco, Sebastian; Kachru, Shamit (2006-11-09)
    We engineer a class of quiver gauge theories with several interesting features by studying D-branes at a simple Calabi-Yau singularity. At weak 't Hooft coupling we argue using field theory techniques that these theories ...
  • Argurio, Riccardo; Bertolini, Matteo; Franco, Sebastian; Kachru, Shamit (2007-03-28)
    We consider quiver gauge theories arising on D-branes at simple Calabi-Yau singularities (quotients of the conifold). These theories have metastable supersymmetry breaking vacua. The field theoretic mechanism is basically ...
  • Argurio, Riccardo; Bertolini, Matteo; Closset, Cyril; Cremonesi, Stefano (2006-06-20)
    We consider a wide class of cascading gauge theories which usually lead to runaway behaviour in the IR, and discuss possible deformations of the superpotential at the bottom of the cascade which stabilize the runaway ...
  • Argurio, Riccardo; Bertolini, Matteo; Ferretti, Gabriele; Lerda, Alberto; Petersson, Christoffer (2007-05-15)
    We study the effects produced by D-brane instantons on the holomorphic quantities of a D-brane gauge theory at an orbifold singularity. These effects are not limited to reproducing the well known contributions of the gauge ...
  • Argurio, Riccardo; Bertolini, Matteo; Ferretti, Gabriele; Mariotti, Alberto (2010-07-23)
    Gaugino screening, the absence of next-to-leading order corrections to gaugino masses, is a generic feature of gauge mediation models of supersymmetry breaking. We show that in a specific class of models, known as semi-direct ...