Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-08-21
JHEP 0209:010,2002
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX 20 pages, 1 figure, small changes and references added
Scientific paper
10.1088/1126-6708/2002/09/010
We study a bound state of fractional D3-branes localized inside the world-volume of fractional D7-branes on the orbifold C^3/Z_2 x Z_2. We determine the open string spectrum that leads to N=1 U(N1)xU(N2)xU(N3)xU(N4) gauge theory with matter having the number of D7-branes as a flavor index. We derive the linearized boundary action of the D7-brane on this orbifold using the boundary state formalism and we discuss the tadpole cancellation. After computing the asymptotic expression of the supergravity solution the anomalies of the gauge theory are reproduced.
Marotta Raffaele
Nicodemi F.
Pettorino Roberto
Pezzella Franco
Sannino Francesco
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