We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials for gauge theories living on D3-branes at Z(3)-orientifold singularities. Gauge instantons are generated by D(-1)-branes and lead to Affleck, Dine and Seiberg (ADS) like superpotentials in the effective N = 1 gauge theories with three generations of bifundamental and anti/symmetricmatter.Stringy instanton effects are generated by Euclidean ED3-branes wrapping four cycles onT(6)/Z(3).They give rise to Majorana masses,Yukawa couplings or non-renormalizable superpotentials depending on the gauge theory.Finally we determine the conditions under which ADS like superpotentials are generated in N = 1gauge theories with adjoints, fundamentals, symmetric and antisymmetric chiral matter.

Bianchi, M., Fucito, F., & Morales, J. (2007). D-brane instantons on the T^6 / Z(3) orientifold. JOURNAL OF HIGH ENERGY PHYSICS(7) [10.1088/1126-6708/2007/07/038].

D-brane instantons on the T^6 / Z(3) orientifold

BIANCHI, MASSIMO;
2007

Abstract

We give a detailed microscopic derivation of gauge and stringy instanton gen erated superpotentials for gauge theories living on D3-branes at Z(3)-orientifold singularities. Gauge instantons are generated by D(-1)-branes and lead to Affleck, Dine and Seiberg (ADS) like superpotentials in the effective N = 1 gauge theories with three generations of bifundamental and anti/symmetricmatter.Stringy instanton effects are generated by Euclidean ED3-branes wrapping four cycles onT(6)/Z(3).They give rise to Majorana masses,Yukawa couplings or non-renormalizable superpotentials depending on the gauge theory.Finally we determine the conditions under which ADS like superpotentials are generated in N = 1gauge theories with adjoints, fundamentals, symmetric and antisymmetric chiral matter.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici
English
Con Impact Factor ISI
Brane dynamics in Gauge theories; D-branes; Nonperturbative effects; Solitons monopoles and instantons
http://iopscience.iop.org/1126-6708/2007/07/038/
Bianchi, M., Fucito, F., & Morales, J. (2007). D-brane instantons on the T^6 / Z(3) orientifold. JOURNAL OF HIGH ENERGY PHYSICS(7) [10.1088/1126-6708/2007/07/038].
Bianchi, M; Fucito, F; Morales, J
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/56713
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