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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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7 papers · 2 filters
D-brane non-perturbative effects and geometric deformations
Anatoly Dymarsky, Luca Martucci
We study how non-perturbative dynamics on D-branes affects the ten-dimensional geometry. We show that a gaugino condensate changes the complex and the symplectic structures of the…
On stable higher spin states in Heterotic String Theories
Massimo Bianchi, Luca Lopez, Robert Richter
We study properties of 1/2 BPS Higher Spin states in heterotic compactifications with extended supersymmetry. We also analyze non BPS Higher Spin states and give explicit expressio…
SU(5) D-brane realizations, Yukawa couplings and proton stability
Pascal Anastasopoulos, George K. Leontaris, Robert Richter +1
We discuss SU(5) Grand Unified Theories in the context of orientifold compactifications. Specifically, we investigate two and three D-brane stack realizations of the Georgi-Glashow…
Dynamical Supersymmetry Breaking in Intersecting Brane Models
F. Fucito, A. Lionetto, J. F. Morales +1
In this paper we study dynamical supersymmetry breaking in absence of gravity with the matter content of the minimal supersymmetric standard model. The hidden sector of the theory…
Pair Production of small Black Holes in Heterotic String Theories
Massimo Bianchi, Luca Lopez
We study pair production of small BPS BH's in heterotic strings compactified on tori and in the FHSV model. After recalling the identification of small BH's in the perturbative BPS…
Stringy instanton corrections to N=2 gauge couplings
Marco Billo', Marialuisa Frau, Francesco Fucito +3
We discuss a string model where a conformal four-dimensional N=2 gauge theory receives corrections to its gauge kinetic functions from "stringy" instantons. These contributions are…
Phenomenological analysis of D-brane Pati-Salam vacua
P. Anastasopoulos, G. K. Leontaris, N. D. Vlachos
In the present work we perform a phenomenological analysis of the effective low energy models with Pati-Salam (PS) gauge symmetry derived in the context of D-branes. A main issue i…