ar X iv : h ep - t h / 02 01 00 6 v 3 2 7 Ja n 20 05 3 - dimensional scalar - vector dual of topological σ - model ∗ Bogus law Broda

ar X iv : h ep - t h / 02 01 00 6 v 2 2 6 Fe b 20 02 3 - dimensional topological σ - model ∗ Bogus law Broda

A 3-dimensional model dual to the Rozansky-Witten topological sigma-model with a hyper-Kähler target space is considered. It is demonstrated that a Feynman diagram calculation of the classical part of its partition function yields the Milnor linking number.

ar X iv : h ep - t h / 02 01 19 1 v 1 2 4 Ja n 20 02 Wave function of the radion with a bulk scalar field

The behaviour of the distance between two branes (the 'radion') in a braneworld model with a bulk scalar field is investigated. We show that the BPS conditions of supergravity ensure that the dynamics of the scalar field and the radion are not independent ; we derive the four-dimensional effective action, showing that the effective theory is of scalar–tensor nature, coupling the radion to four-...

ar X iv : h ep - t h / 05 01 24 3 v 1 2 9 Ja n 20 05 Gauged maximal supergravities and hierarchies of nonabelian vector - tensor systems ∗

We describe generalizations of the manifestly E6(6) covariant formulation of five-dimensional gauged maximal supergravity with regard to the structure of the vector and tensor fields. We indicate how the group-theoretical structures that we discover seem to play a role in gauged supergravities in various space-time dimensions.

ar X iv : h ep - p h / 02 05 01 6 v 2 3 0 O ct 2 00 2 Scalar a 0 ( 980 ) meson in φ → π 0 ηγ decay

ar X iv : h ep - t h / 01 05 13 4 v 2 1 1 Ja n 20 02 WATPPHYS - TH 01 / 07 Vortex Holography

We show that the Abelian Higgs field equations in the four dimensional anti de Sitter spacetime have a vortex line solution. This solution, which has cylindrical symmetry in AdS 4 , is a generalization of the flat spacetime Nielsen-Olesen string. We show that the vortex induces a deficit angle in the AdS 4 spacetime that is proportional to its mass density. Using the AdS/CFT correspondence, we ...