We prove that all SYM theories that have a quantum modified moduli spaceM defined by a single constraint equation have trivial homotopy groups πj(M) for j = 0, 1, 2, 3 and 4. This implies that none of these theories admit skyrmions or vortexes -a fact that had only been proved for supersymmetric QCD with Nf = Nc and Sp(2N) with 2N + 2 fundamentalswhereas those of them with a nontrivial H5(M) ad...

The supersymmetry breaking parameters and the resulting supersymmetric particle spectrum are studied in orbifold compactifications of string theory under the assumption that unification of gauge coupling constants at about 10 16 GeV is a consequence of large moduli dependent string loop threshold corrections. The effect on the spectrum of various assumptions as to the modular weights of the sta...

We show some structures of moduli stabilization and supersymmetry breaking caused by gaugino condensations with the gauge couplings depending on two moduli which often appear in the four-dimensional effective theories of superstring compactifications. Talk given at the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY06), UC Irvine, California,...

We study the neutralino dark matter phenomenology in the context of effective field theories derived from the weakly–coupled heterotic string. We consider in particular direct detection and indirect detection with neutrino telescopes rates. The two cases of moduli dominated and dilaton dominated SUSY breaking lead to completely different phenomenologies. Even if in both cases relic density cons...

The role of moduli stabilization in predictions for CP violation is examined in the context of four-dimensional effective supergravity models obtained from the weakly coupled heterotic string. We point out that while stabilization of compactification moduli has been studied extensively, the determination of background values for other scalars by dynamical means has not been subjected to the sam...

We analyze N = 2, 1, 0 vacua of type IIB string theory on K3 × T /Z2 in presence of three-form fluxes from a four dimensional supergravity viewpoint. The quaternionic geometry of the K3 moduli space together with the special geometry of the NS and R-R dilatons and of the T2-complex structure moduli play a crucial role in the analysis. The introduction of fluxes corresponds to a particular gaugi...

The modulus of elasticity Youngs modulus E is a material property, that. From the Hooks law the modulus of elasticity is defined as the ratio of the stress to.modulus of elasticity of the cultured SC cells examined in this study, in central, non-nuclear regions, ranged between. Johnson B.all require an effective E, the Youngs modulus or elastic modulus, to quantify. Elastic moduli, such as the ...

We consider the theories obtained by dimensional reduction to D = 1, 2, 3 of 4D supersymmetric Yang–Mills theories and calculate there the effective low-energy lagrangia describing moduli space dynamics — the low-dimensional analogs of the Seiberg–Witten effective lagrangian. The effective theories thus obtained are rather beautiful and interesting from mathematical viewpoint. In addition, thei...

Unbound granular pavement layers show a characteristic increase in moduli from the subgrade to the surface. The ratio of moduli between successive layers provides a direct and effective measure of pavement quality that makes due allowance for site conditions and seasonal effects beyond a contractor’s control. The modular ratio is therefore an effective indicator for performance-based specificat...

In string theory, stabilization of moduli fields and their cosmological implications have been discussed by many authors. In this paper we do not consider conventional modulus, nor relative distance between two branes. We focus our attention to a relative position of three branes and discuss its cosmological problem. In general, stabilization of the relative position of three intersecting brane...