D-instanton calculus has proved to be able to probe the AdS near horizon geometry for N D-branes systems which, when decoupled from gravity, yield four-dimensional superconformal gauge theories with various matter content. In this work we extend previous analysis to encompass fractional brane models which give rise to non-conformal N = 2 Super Yang-Mills theories. Via D-instanton calculus we study the geometry of such models for finite N and recover the beta function of the gauge coupling constants which is expected in non-conformal gauge theories. We also give a topological matrix theory formulation for the D-instanton action of these theories. Finally, we revisit the related system where the D3-branes wrap a R-4/Z(p) orbifold singularity and the D(-1)-branes are associated to instanton solutions of four-dimensional gauge theories in the blown down ALE space.

D-instanton probes of non-conformal geometries / Fucito, F.; Morales, J. F.; Tanzini, A.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2001:7(2001), pp. 1-28. [10.1088/1126-6708/2001/07/012]

D-instanton probes of non-conformal geometries

Tanzini, A.
2001-01-01

Abstract

D-instanton calculus has proved to be able to probe the AdS near horizon geometry for N D-branes systems which, when decoupled from gravity, yield four-dimensional superconformal gauge theories with various matter content. In this work we extend previous analysis to encompass fractional brane models which give rise to non-conformal N = 2 Super Yang-Mills theories. Via D-instanton calculus we study the geometry of such models for finite N and recover the beta function of the gauge coupling constants which is expected in non-conformal gauge theories. We also give a topological matrix theory formulation for the D-instanton action of these theories. Finally, we revisit the related system where the D3-branes wrap a R-4/Z(p) orbifold singularity and the D(-1)-branes are associated to instanton solutions of four-dimensional gauge theories in the blown down ALE space.
2001
2001
7
1
28
012
https://doi.org/10.1088/1126-6708/2001/07/012
https://arxiv.org/abs/hep-th/0106061
Fucito, F.; Morales, J. F.; Tanzini, A.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/11965
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