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D-instanton probe and the enhancon mechanism from a quiver gauge theory

par Conde Pena, Eduardo ;Moskovic, Micha
Référence The Journal of high energy physics, 2014, 4, 148
Publication Publié, 2014

Article révisé par les pairs

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Résumé :

We study the N = 2 field theory realized by D3-branes on the C2/Z2 orbifold. The dual supergravity solution exhibits a repulson singularity cured by the enhancon mechanism. By comparing the open and closed string descriptions of a probe D-instanton, we can compute the exact non-perturbative profile of the supergravity twisted field, which determines the supergravity background. We then show how the non-trivial IR physics of the field theory translates into the stringy effects that give rise to the enhancon mechanism and the associated excision procedure. © The Authors.