On the one-loop Kahler potential in five-dimensional brane-world supergravity

Details On the one-loop Kahler potential in five-dimensional brane-world supergravity On the one-loop Kahler potential in five-dimensional brane-world supergravity

2005-02-07

arxiv.org/abs/hep-th/0502072v1

JHEP 0505 (2005) 073

Physics

High Energy Physics

High Energy Physics - Theory

20 pages

Scientific paper

10.1088/1126-6708/2005/05/073

We present an on-shell formulation of 5d gauged supergravity coupled to chiral matter multiplets localized at the orbifold fixed points. The brane action is constructed via the Noether method. In such set-up we compute one-loop corrections to the Kahler potential of the effective 4d supergravity and compare the result with previous computations based on the off-shell formalism. The results agree at lowest order in brane sources, however at higher order there are differences. We explain this discrepancy by an ambiguity in resolving singularities associated with the presence of infinitely thin branes.

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