Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1999-04-08
Class.Quant.Grav. 16 (1999) 2625-2649
Physics
High Energy Physics
High Energy Physics - Theory
36 pages, LaTeX, misprints corrected, explicit example added
Scientific paper
10.1088/0264-9381/16/8/305
We present a formulation of the coupling of vector multiplets to N=2 supergravity which is symplectic covariant (and thus is not based on a prepotential) and uses superconformal tensor calculus. We do not start from an action, but from the combination of the generalised Bianchi identities of the vector multiplets in superspace, a symplectic definition of special Kahler geometry, and the supersymmetric partners of the corresponding constraints. These involve the breaking to super-Poincare symmetry, and lead to on-shell vector multiplets. This symplectic approach gives the framework to formulate vector multiplet couplings using a weaker defining constraint for special Kahler geometry, which is an extension of older definitions of special Kahler manifolds for some cases with only one vector multiplet.
Claus Piet
Hoof Kor Van
Proeyen Antoine Van
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